Saville Consulting Wave Personality Test: Complimentary Webinar from PsyAsia
PsyAsia International invites you to a complimentary webinar on the features of the Saville Consulting Wave Personality Test.
The webinar will run at 6pm Singapore time on 20 December 2010.
At the webinar we will discuss the following:
- Introduction to the Saville Consulting Wave
- What makes Wave a real revolution in personality assessment?
- Comparative validity of Wave with other personality assessments
- Applications of the Wave Framework (selection, team-building, 360 appraisal etc)
- Introduction to the new Wave Leadership and Interview reports
- Overview of other Wave reports
Online Psychometric Test Mini-Course: Lesson 6 – Psychometric Test Scoring
In this session we will explore the following:
1. Computer-based scoring of psychometric tests
2. Hand-scoring of psychometric tests
3. Norming of test results
4. The link between scoring of tests and reliability
Converting raw scores to standardised scores and using representative norms will be covered in a later session.
Once a psychometric test has been properly administered, it needs to be scored. Depending on the test chosen, you may have a few options.
a. You can opt for computer-based scoring.
This would work if you had administered the test using computer software or if you had asked your candidate to complete an online test. For online tests, this option is good because it is less likely to involve scoring errors! Your candidate completes the test online and then the system immediately and automatically scores the test. There is no additional input required and hence less chance for error. This pre-supposes the publisher has used the correct scoring algorithms of course. Whilst most reputable test publishers will, we do know of one who had an error in a test battery that was not spotted until one of their distributors pointed out that his partner had done poorly on a test for which she was a subject matter expert!!
If you administer the test to your candidate using desktop software, you should be able to automatically score it in the same way as above.
b. You can opt for hand-scoring or a bureau service or keyed input followed by computer-scoring. You are most likely to use this option if you administered the test to your candidate using hard-copy test booklets and answer sheets.
Firstly, you’ll need to double-check the answer sheets to ensure that there are no irregularities. Ensure that it’s obvious which answer the respondent selected. Be careful with any “blobs” that may have appeared from ink or pencil smudges etc. If a respondent has changed their mind after selecting a response and has crossed it out, ensure that you only use the most recent response in scoring.
For hand-scoring using a scoring key, you’ll next need to align the scoring key with the answer sheet. The exact requirements will vary based on the test you are using, so ensure that you read and fully understand the instructions provided by the test publisher.
Once you have scored the responses, double-check your scoring. You then need to record the score. The score you calculate at this point is called the RAW SCORE. On its own, a raw score means nothing. If I tell you that you scored 54 on a numerical reasoning test or 75 on the extraversion scale of a personality assessment, you’ll need to ask me more questions before you truly understand your score. The most important question to ask would be how your score compared to others. The comparison of your score with others is called norming.
It is called norming because we compare a candidate’s score to a group of others (called the norm group) who completed the test in the past. To undertake this comparison, you can do it by way of a simple calculation or through the use of norm tables either developed by yourself or, more usually, supplied by the test publisher.
Norm tables allow us to use a standard vocabulary for expressing a candidate’s score in relation to others who have taken the test and it is for this reason that we call your new score a standardised score. A standardised score is simply your candidate’s raw score, compared with the norm group and expressed in terms of how the candidate scored in relation to others. We’ll consider standardised scores in more detail in a later lesson. You’ll see by now that your objective is to calculate the candidate’s standard score as this is the way to achieve maximum meaning. If you opt for paper and pencil tests and hand-scoring, the process can be lengthy. So are there other options?
We have already seen above that we can simply have the candidate complete an online test. However, you may not wish to do this if there are many candidates. This is because you will need as many computers as candidates if you are going to supervise them. If you are using an unsupervised test, the candidate can complete on their own PC, but you may be concerned about possible cheating and so on. This is why you may end up using paper and pencil tests (in a supervised environment). However, there is an alternative to arduous hand-scoring if you have used paper and pencil tests.
You can use the bureau service of your psychometric test distributor. You just need to check that the answer sheet is properly completed, clear and free from any irregularities and then send the answer sheet to the distributor by fax or scanned email. The bureau service will then score the test for you and send you a report.
Furthermore, you may have another option yet. If you have access to a computer or online test system, you can probably also enter the candidate’s responses to each question into the system and have the system produce the report. This is essentially what the bureau service above does for you. Doing it yourself should work out cheaper. Do be careful when you transpose the responses though – accuracy is far more important than speed unless you want to invalidate the whole process!!
Self-scoring answer sheets: Some psychometric tests are supplied with self-scoring answer sheets. These are much easier to use than non-self-scoring answer sheets. In this case you usually need to open up the answer sheet by tearing off some perforated card. Inside the answer sheet, the candidate’s responses will have been duplicated via carbon or similar onto a scoring card. Usually, you add up the number of responses (often black circles) that appear inside a circle. Those outside of a circle represent incorrect answers so don’t get counted. Once you’ve added up correct responses, you have your raw score. Slightly different procedures obviously apply for personality assessments and fewer personality assessments provide self-scoring answer sheets due to their scoring complexity. When using self-scoring answer sheets you need to be especially careful to ensure that the candidate presses hard on the answer sheet when completing the test. If they are light-handed their responses may not come through onto the scoring card!
Finally, let’s consider the link between psychometric test scoring and reliability/validity. As you know, the test administrator can have a huge impact upon psychometric test reliability throughout the whole process. At the scoring stage you can affect reliability simply by scoring incorrectly. This might happen because you miss the fact that a candidate crossed out their answer and changed their mind. It may also happen because you try to score fast and just don’t add up correctly. Perhaps you use the scoring key incorrectly or perhaps the scoring is so arduous (often the case for personality assessments) that you simply get lost in the scoring or incorrectly use your calculator!
Ensure therefore that you fully understand how to score the test, use the scoring key as per the publisher’s instructions, score slowly and double check or have someone else double check your scoring. If possible, use computer based scoring or self-scoring answer sheets. Incorrect scoring reduces reliability and of course that means that a valid test can become invalid and a waste of time or money!
Interested in learning more about psychometric testing for HRM? Keep reading – your next free session is not far away! To ensure you don’t miss a single instalment, we suggest you follow-us on twitter as each new post will be announced there. You may also like to join our face-to-face psychometric training courses in Singapore or Hong Kong – these range from simple introductory courses through to Certification Courses such as the BPS Level A and BPS Level B Certificates of Competence in Occupational Testing. Not in Singapore or Hong Kong? No problem – we also offer both recorded and live online training in psychometrics! For full details please see here or email us.
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THIS ARTICLE IS CLEARED FOR PUBLISHING ON PSYCHOLOGY1 GROUP SITES ONLY. IT REMAINS COPYRIGHT AND INTELLECTUAL PROPERTY OF PSYASIA INTERNATIONAL PTE. LTD. YOU ARE NOT AUTHORIZED TO PUBLISH IT ON ANY OTHER SITE. YOU ARE NOT PERMITTED TO COPY/PASTE THIS ARTICLE OR TO SAVE IT TO YOUR LOCAL DRIVE. YOU ARE ONLY PERMITTED TO READ IT ONLINE AT OUR WEBSITE. VIOLATION OF THESE TERMS WILL RESULT IN BANNING OF OFFENDING IPS AND LEGAL ACTION FOR THOSE WHO REPUBLISH THIS ARTICLE WHETHER IT BE WITH OR WITHOUT A REFERENCE TO THE ORIGINAL AUTHOR.
Chinese Personality – Do we need indigenous psychometric tests?
It’s perhaps quite natural to believe that the Chinese personality is so different to others that it requires a special psychometric test to assess it. What better way to sell your new Chinese personality test than to state that it is “high time a test for the Chinese” were developed. However, this throws doubt upon the utility of rigorously developed international psychometric tests of personality.
Given the above, we embarked on a research program to assess whether Chinese people differ significantly comparied to others in terms of personality structure and whether personality tests that purport to assess Chinese Personality are able to predict any more work performance than internationally developed tests have already been proven to do!
You can read our research findings it: personality.cn, our Chinese Personality at Work Research Site.
No time to read the whole site? Here’s a quick summary:
Locally developed psychometric tests which purport to assess “indigenous” aspects of Chinese Personality were found to be less reliable than reputable internationally developed tests of personality. Furthermore, there is a big question as to whether so-called “indigenous” traits are Chinese-specific. Issues such as traditionalism or face also exist in other cultures! Moreover, the research has demonstrated that whatever we choose to believe about Chinese Personality, locally developed (Hong Kong) tests of “indigenous” personality add nothing to the prediction of performance at work that is not already accounted for by reputable internationally developed personality tests.
We present this research in a free HRM webinar which you can watch here. We held a vote at the beginning and end of our webinar whereby we asked attendees if they believed that Chinese Personality is so different that Chinese people need their own personality test. At the beginning of the webinar, the majority of the attendees said yes! By the end of the webinar only one attendee still believed this to be the case! We recommend choosing well designed psychometric tests with high reliability and validity. Personality is a universal construct, thus locally developed tests may have little benefit to the hiring manager!
Online Psychometric Test Mini-Course: Lesson 4
In this session we will explore the following:
1. The relationship between reliability and validity in psychometric assessment
2. How psychometric test administrators can impact the reliability of tests
Psychometric Test Reliability
When choosing a reputable test, whether it be aptitude or personality, one of the properties of the test you will need to look for is reliability. We’ll consider reliability in appropriate detail in a later section of the course. For now, think of reliability as consistency. In order to have absolute confidence in our test scores we need them to be consistent. However, we can’t test and retest our candidates in the real world. Despite this, reputable test publishers would already have done this for you. This would have been carried out under optimal conditions. So, now you know that you are using a reliable test (one that produces consistent scores), it’s your task as the test administrator to ensure that the test remains a reliable test.
Why is reliability so important?
Whenever you assess something, you expect the score you get to be reliable. For example, if you assess your weight using bathroom scales, you expect the reading you get to be consistent across at least the short term. If you weigh yourself over 2 consecutive days and get significantly different readings you know something is wrong with the scales! The same is true of psychometric tests. The publisher first ensures that the test scores will be consistent over time and then you, as the administrator, need to ensure that your actions do not make the test less reliable.
Not only do we want and expect test results to remain reliable over time, but we also know that reliability is a precursor to validity. It sets an upper limit on the test’s validity. In other words, if your test is not reliable then it is not valid. Confusing? Let’s use the weighing scales example again…
Let’s suppose a medical doctor does some research which shows that those who weight more than 120kg are significantly more likely to suffer a heart attack. His research shows that weight is a valid indicator for predicting the heart attack. The scales are fit for the purpose of predicting a heart attack. Validity is all about being fit for purpose. Now if those scales are not reliable, they will provide inconsistent data over the time of the research program. In this case would you have confidence in the doctor’s findings? Of course not!
So, to apply this to psychometric tests let’s take an aptitude test. We’ve carried out research which confirms that a new numerical reasoning test can predict the performance of accountants. Those who score better on the test are rated as better accountants. This is validity. The test is fit for the purpose of predicting accountant performance. You will hopefully have full confidence in this finding if you know the test is reliable. If however you expect the test is coming up with inconsistent scores for your candidates, it is unreliable, and, as in the scales example above, you will not have confidence in the test’s prediction of accountant performance. This is why reliability is a precursor to validity.
And why is all of this so important for this course? It’s because you as the test administrator can enhance or reduce the reliability of the test by how you administer it in the first place. Let’s now take a look at what factors you can and can’t influence in terms of reliability.
How psychometric test administrators can impact the reliability of tests
- Factors Affecting Psychometric Test Reliability (C)2010 PsyAsia International: No Copying
Take a look at the graphic on the left. It shows different factors which can impact the reliability of psychometric tests. This applies to both aptitude tests and personality assessments.
Factors within the test
Generally, a test administrator is not responsible for this. The test publisher must design tests that will be highly reliable. Factors within the test means that the questions chosen must be accessible to all groups for whom the test is intended. If a subsection finds some questions difficult based on their group membership (i.e. non-native-English speaking groups may not understand a colloquialism used in a test question), then the test will be less reliable for that group. Although the publisher needs to ensure a reliable test, not all test publishers are reputable or know what they are doing! This is why the person who purchases the test needs to know how to evaluate it. We’ll show you later how to evaluate the test in greater detail. Know for now that you do not evaluate a test or validate it by trialling it on yourself or your colleague as many untrained users think!
Factors within the respondent
Whilst the test administrator cannot control all the possible factors within a respondent, you can do your best to ensure you control for a much as possible. It’s a good idea to think here about how you would like to be treated if you were undergoing a psychometric assessment for the first time. You’d probably like a friendly invitation letter explaining what is going to happen and why. You’d like to know that your data and results will remain confidential and only shared with decision-makers and only for the purpose that you’re undertaking the test. You’d also like to know what you need to bring with you and if possible, a few example questions as approved by the test publisher might help to set your mind at rest. Finally it would be good to have a number to call should you have any special needs that you wish to convey to the administrators before the day. So, when you arrive at the test centre you already know what is going to happen and why, you won’t be overly concerned, you’ll have all the right things with you (e.g., reading glasses) and you’ll know how long the session is going to last. If it’s a personality test you’ll be more likely to be open and honest because you know your results won’t go further than the selection or development committee and won’t be used for reasons beyond the reason you’ve already been given.
Ultimately here you are attempting to control for mood and expectations. Ideally you don’t want these to vary between candidates in order to give everybody the same start line. On the actual day of the test you will go over all of these things again with the candidates in the room to ensure that they are all clear on what will happen and why. Again, this sets the scene and mood, demonstrates your organisation’s “humanness” in the assessment process and provides candidates with an opportunity to ask questions. Furthermore, on the day you will need to ensure that you administer the test instructions word for word and then administer the test exactly as intended by the test publisher. Doing all of this enhances consistency and thus increases reliability. This is essential as we saw before because reliability is the precursor to validity.
Factors within the environment
How well would you be able to complete an aptitude test in a noisy room? Or how about room that’s freezing from too much air conditioning or too hot due to broken air conditioning? Likewise, you need to ensure that the test environment is conducive to candidate performance each and every time. This applies to personality assessment too. Although there is no right or wrong, your candidate will certainly feel more able to make an effort and respond accurately if you provide them with the right environment! So, some time before the session you’ll need to check the room, make sure temperature controls work. On the day, switch them on in good time before the test so that by the time candidates arrive the room is just right. Place a sign on the door to ensure you are not disturbed during the testing session and be sure to silence all phones in the room. Candidates should of course have phones switched off too. Ensure that once the session is over, all candidates leave at the same time so that they do not disturb others. If a candidate really must make a restroom visit, they should be accompanied by an administrator and only one candidate at a time should go. Ensure that upon leaving and rejoining the room the candidate does not disturb others.
(Note: also a good idea to check there is no planned construction nearby and there are no fire drills scheduled on the day of testing. Do this before sending out your invitation to the candidate!)
Summary
By referring to these guidelines you’ll help to ensure that psychometric tests used by your organisation remain as reliable as the publisher intends them to be. By using short-cuts and not following the guidelines you’ll threaten the reliability and therefore the validity of the tests. If you threaten a test’s validity it becomes unfit for purpose which means your company is wasting its money buying psychometric tools!
Interested in learning more about psychometric testing for HRM? Keep reading – your next free session is not far away! To ensure you don’t miss a single instalment, we suggest you follow-us on twitter as each new post will be announced there. You may also like to join our face-to-face psychometric training courses in Singapore or Hong Kong – these range from simple introductory courses through to Certification Courses such as the BPS Level A and BPS Level B Certificates of Competence in Occupational Testing. Not in Singapore or Hong Kong? No problem – we also offer both recorded and live online training in psychometrics! For full details please see here or email us.
DO NOT COPY OR SAVE THIS ARTICLE TO YOUR COMPUTER.
THIS ARTICLE IS CLEARED FOR PUBLISHING ON PSYCHOLOGY1 GROUP SITES ONLY. IT REMAINS COPYRIGHT AND INTELLECTUAL PROPERTY OF PSYASIA INTERNATIONAL PTE. LTD. YOU ARE NOT AUTHORIZED TO PUBLISH IT ON ANY OTHER SITE. YOU ARE NOT PERMITTED TO COPY/PASTE THIS ARTICLE OR TO SAVE IT TO YOUR LOCAL DRIVE. YOU ARE ONLY PERMITTED TO READ IT ONLINE AT OUR WEBSITE. VIOLATION OF THESE TERMS WILL RESULT IN BANNING OF OFFENDING IPS AND LEGAL ACTION FOR THOSE WHO REPUBLISH THIS ARTICLE WHETHER IT BE WITH OR WITHOUT A REFERENCE TO THE ORIGINAL AUTHOR.
Replace Psychometric Tests in Singapore?
Last week the Singapore-based Straits Times published an article which reported a study carried out at NUS linking testosterone to advantages in leadership. PsyAsia’s Dr. Graham Tyler was asked to comment on the reasearch and he was asked if biological testing might replace psychometric testing in the future! A copy of the article can be downloaded here:
There are a number of limitations in the above thinking. Not least the fact that the study was carried out on students – hardly real-world organisational leaders! Also, given that this was a correlational analysis it cannot be inferred that testosterone increases leadership skills. It might actually be the opposite. Finding oneself in leadership scenarios may cause the body to produce more testosterone!
Biological testing is certainly not about to replace psychometric tests in Singapore or anywhere else. Not only is the area contentious it would also bring legal issues into play. We know already that biology plays a role in many aspects of who we are from personality traits to ability and more. However, we also know that the environment, access to resources and simply luck (ie where we find ourselves, who our teachers/mentors are) also play a huge part. Psychometric tests should never be used on their own to inform decision-making processes and neither should any other form of assessment – biological testing, interviews and so forth. However, the use of highly valid tools used in conjunction with each other is a good thing.
Note: In the article, there is a mention that aptitude tests can predict between 9-36% of performance. This is incorrect. The journalist asked about personality tests and was told that traditional personality tests can predict about 9-36% of performance. Aptitude tests are able to predict more than this and more modern personality assessments such as Identity or the Saville Consulting Wave do an even better job than traditonal personality tests!
Psychometric Tests – Translation Bias
Types of Bias in Psychometric Test Translation
With the demand and need for psychological tests increasing in various different cultures and countries, there has been much greater awareness regarding some of the issues that are associated with the development or adaptation of tests to be used in contexts and situations that may be different from which the test was developed for. This article focuses on one of the key aspects of translating tests, the types of bias that can occur.
When utilizing the test in a new cultural group, it is not quite as simple as directly translating the test, administering it and then comparing the results for its validity. There are a number of issues that need to be considered such as whether the area assessed with the test applies to the new culture or whether is may be biased towards that group and whether what is assessed by the test also has similar behavioral indicators? These are just some of the potential areas where bias can be found in the translation of tests and affect the validity of the test being utilized in the new context.
Van der Vijer & Hambleton (1996) differentiates between three distinct types of bias that may affect the validity of tests that have been adapted for different cultural contexts and these are construct bias, method bias and item bias.
Construct bias occurs when the construct (e.g. personality) that is measured by the test displays significant differences between the original culture for which it was developed and the new culture where it is going to be utilized. These differences can occur in the way that the construct was formulated and developed as well as in the relevant behaviors that are associated with the construct. It is critical to examine whether the underlying theory of the test is subject to construct bias and this can be examined through the studies examining the construct and its associated behaviors in the context that it will be utilized in. If there are significant differences found in these studies, it may indicative that there is construct bias. Major revisions may be required to overcome this bias. If not, the validity of the test will be affected.
Method bias refers to factors or issues related to the administration of the test that may affect the validity of the test. Examples of areas that method bias can occur include social desirability, acquiescence response styles, the conditions in which the test was conducted and the motivation of the respondents. Across cultures, there potentially can be differences that can occur in these areas and these can affect the way that the respondents answer the items in the test. This potentially may lead to differences between found that can be erroneously attributed to cultural differences when in fact, these differences are the result of differences in the administration procedures. As a result, it is threat to the validity of tests that have been adapted for use in new cultures. Test developers also not only need to focus on the adaptation of the test itself but also need to be aware of issues regarding the implementation of the test in a new context.
Item bias is another source of bias that can occur in the translation of tests and these refer to biases that occur with the items in the test. This is usually the result of either poor translation choices for items or due to culturally inappropriate translations. For example, the phrase “kick the bucket” is essentially a phrase that referring to passing away in the Western context and is commonly known by most people in that culture; unfortunately, this phrase would have no meaning for people from cultures without any prior experience with that phrase. In this manner, a literal translation of that phrase would be a poor translation as it does not convey the correct meaning of the item. The items in the test need to be culturally equivalent, where the meaning of the items needs to be correctly translated so as to maintain the validity of the test in the new cultural context.
These are some of the biases that may occur during the translation of tests. Test developers will need to be aware of the sources of bias and take the appropriate measures to avoid these biases.
References:
Van der Vijer, F. and Hambleton, R. K. (1996). Translating tests: some practical guidelines. European Psychologist, 1, 89-99.
Psychometric Training in Singapore, Hong Kong, Malaysia, and China
If you are serious about using psychometric tests properly then we recommend joining PsyAsia International’s Psychometric Assessment at Work Course which leads to a certificate of competence in Occupational Testing Level A and Level B from the British Psychological Society. The Course is run publically in Singapore and Hong Kong or in-house anywhere.
More details about BPS Level A and B in Singapore and Hong Kong
Online Psychometric Training – Worldwide
Alternatively, you might be interested in introductory Online Psychometric Test Training presented live by a registered psychologist. PsyAsia is offering a special fee of just US$12 for anybody who registers for the February online psychometric training course!
More details about online psychometric test training
Free Webinar – Identity Self-Perception Questionnaire
Identity Psychometric Personality Questionnaire Webinar
Attendees will be introduced to this personality assessment which produces the most comprehensive assessment of personality on the market. Key decision-makers will also have an opportunity to trial Identity.
-Overview of the Identity Self Perception Questionnaire
-Scales of Identity
-Derived Psychological Models
-Identity Reports
-Identity Online
-Benefits of Identity
-Applications of Identity
-Comparison with other leading questionnaires
-Identity Accreditation
Psychometric Tests in Singapore
The Market for Psychometrics in Singapore
There are so many Psychometric Tests on the market in Singapore now, the task of choosing the right one is not easy. Choice is always a good thing, however as humans we often look for easy or stereotypical ways of making those choices and they are not always the best ones to make. For example, a client of ours was preparing for an upcoming team-building session. He approached us asking if we had a certain test that he could use in that session. Our answer was that we don’t supply that test for various very good reasons. The client’s response was “but so many people use it”. This is a typical response. Another potential client had been looking around in Singapore for Psychometric Personality Tests to use in his training sessions as an added benefit. He categorically advised us that he was not interested in validity and was looking for something simple and cheap! The reality here is that at best he is wasting his time and the time of those who will complete his tests. At worst and most likely, his trainees will be led to believe things about themselves which frankly may not be true (reliable or valid!).
Science, Psychology, Psychometrics and the Real World of Business
As busy professionals we often assume that if lots of other people are using a test it must be a good one. This is a huge mistake. Our evolution has programmed us to be seduced by glossy advertising materials and confident, friendly salespeople. On the other hand, we have a tendency to be turned off by less glossy scientific figures, statistics and perhaps psychologists such as myself who speak about the science and real value behind a test, its validity! Ultimately then, both our clients and ourselves as psychologists have problems to overcome!!
Psychologists have to be able to explain in more “glossy” terms about the technical properties of a test and our clients, usually the HR and aligned professions, are invited to turn their ears our way for a little while, just long enough to get the notion that there is more to a psychometric test than meets the eye!
Technical Properties of Psychometric Tests
When we talk of the technical properties of a psychometric test, we are referring to things such as its reliability and validity as well as how it was constructed. If a test is constructed well, it will take time. Not months, often years. The test will also evolve over time such that more and validity data will be added to its manuals. This process is costly, hence good tests cost money.
If you come across cheap tests, that should start to ring alarm bells. It’s possible to write a few questions on a napkin in a restaurant and call it psychometric and even try to sell it. If it looks good and the questions look relevant perhaps it will sell and gain a huge following. But how reliable is that test?
In other words, can it provide consistent measurement of your candidate? If your bathroom scales provide different results each time you weight yourself you take them back and say these are not reliable. Likewise with a test, you need to ensure that it is consistently assessing the constructs that it purports to assess. We often come across new clients who are shocked when we tell them that good personality tests often contain around 200 questions. However, buyer beware! We know that the longer the test, the more reliable the results (as long as it is not so long that the candidate falls asleep!).
An unreliable test can not be a valid test, hence reliability is a precursor to validity. However, validity is arguably the most important aspect of a test. You choose to use tests because you want them to illustrate where a candidate stands in terms of their ability or personality or in order to predict how your candidate will perform or behave in a job. The test’s ability to meet this need is referred to as validity.
Some tests on the market are simply more valid that others. In fact, one test in the past year has proven to be more valid than all other tests it was compared with on the market! How come users stay with their current test then? Perhaps because of preference, habit, price, mass-following and so on. However, do ask yourself and your test supplier, how valid is your test – this is the single most important technical property in a psychometric test!
Sometimes tests which are more valid will be more expensive but this makes sense. If a test took a long time to develop, was developed well and by a reputable publisher and is based on well founded theories that have been researched internationally, then surely it is worth paying the extra as such a test will provide an excellent return on investment with its strong validity.
Training to use Psychometric Tests in Singapore
Properly developed psychometric tests require proper training to be used competently. If your test supplier requires that you undergo very limited or no training, this is a reflection of the test as well as their lack of understanding of psychometrics. You need to understand the concepts referred to above, as well as error in testing and how to make decisions based on test results, let alone how to feed back results properly to candidates and decision-makers. The type of questions (i.e., forced choice versus rating scales) will also dictate how you can use the results – you need to be trained to understand this! In some parts of the world (South Africa for example), only psychologists can use psychometric tests. Whilst this is a strict rule, it has its logical basis in how easy it is for untrained professionals to use tests wrongly.
Purchasing Psychometric Tests in Singapore
You may also wish to consider where you purchase your tests from, particularly in Singapore. In recent years we have seen an influx of profiteers in the industry who seek to make money but lack any depth of understanding in psychometrics or psychology at work. This will change in time as psychology in Singapore develops. For now however, be wary of this and we suggest that you only purchase psychometric tests from fully registered organisational psychologists who have a firm grounding in personality, psychometrics and psychology at work and who are answerable to professional competence and ethics boards. Many of those selling psychometric tests in Singapore are simply not answerable to anybody in terms of their conduct or competence. You can therefore not be certain that any advice they provide is relevant, up-to-date or will work in your organisation.
There are many more things to be aware of when choosing psychometric tests in Singapore. We cannot entertain them all here due to space constraints. You may wish to look out for training courses in Psychometric Assessment such as our our Psychometric Assessment at Work training which leads to the internationally recognised British Psychological Society Level A and B Certificates of Competence in Occupational Testing. Such courses will prepare you further for choosing the right test and therein avoid costly selection and development mistakes. Look for courses run by experts in psychometrics who are based in Singapore and hence have a strong understanding of test use aligned with local culture, laws and practice.
Note: some Singapore firms will ship in overseas trainers to run psychometric training. We suggest you avoid this training reseller model given that the facilitator is based overseas and is thus likely to lack knowledge of the Singapore business/legal and cultural environment for Psychometric Testing.
This article is Copyright PsyAsia International Pte Ltd.
It was originally written for Human Resources Magazine in Singapore
A shorter version of the article appears in the magazine’s November 2009 issue
