Psychological Testing

By Team TherapyRoute

You may have been told that you, or your child, needs psychological testing. The word test can make people anxious, partly because it suggests something to pass or fail. That is not what these tests do.

This page explains what testing really means, in plain terms. It is written for you, the person being assessed. Our aim is to leave you informed, and a little calmer.

Testing is only one part of an assessment

Start with the most useful fact. A psychological test is not the whole picture, and assessment is the broader process around it.

A good assessment draws on several sources: your history, interviews, past records, and rating scales. A rating scale is a questionnaire with set answers, scored against a standard. Testing is one of those sources, and never the only one.

When a child is assessed, this is very clear. The psychologist may speak with parents and teachers too, because the same child can look quite different at home and at school, and both views help make sense of the results.

What a good clinician asks before testing

Testing should never be automatic. A thoughtful clinician asks what the testing is for, because the reason for the referral shapes everything that follows. It decides which tests are chosen, and how the results are read.

One question is worth asking directly: will the result change what happens next? If a test will not change the plan, it may not be needed.

The other side of this matters too. Too little testing carries its own risk, because a real problem can be missed and left untreated. Too much testing has a cost as well: it adds expense, and discomfort, without adding clarity.

What makes a test trustworthy

Not all tests are equally sound. Two qualities decide whether a test can be trusted: reliability and validity.

A reliable test gives steady results over time, so the same person tested twice does not get wildly different scores. A valid test measures what it claims to measure. A good instrument needs both.

What your results are compared with

A score on its own means little. Testing compares your result with a large group of people who have already taken the same test. That group is known as the norm sample.

The comparison works in two directions. It shows how you compare with others, and it also shows your own strengths and weaker areas.

The main kinds of psychological tests

There are many tests, but they fall into a few families, and knowing the families helps more than knowing every name. These are the ones you are most likely to meet.

Cognitive and intelligence tests

Cognitive tests describe how a person thinks and solves problems. Tests of IQ and academic achievement sit here, and the Wechsler Intelligence Scale for Children is one well-known example.

These tests help when a child is not keeping up at school. They show where support may be needed.

Neuropsychological tests

Neuropsychological tests focus on the link between brain and behaviour. They are helpful after a brain injury, epilepsy, or a brain tumour, and they can add clarity when two conditions look similar.

Naming the brain basis of a difficulty can help. It has made conditions like dyslexia clearer, and less shaming.

Personality tests

Personality tests come in two broad types. Objective tests use set questions with fixed answer choices, scored the same way for everyone. Projective tests work the other way, using open, unclear images or prompts.

With a projective test, you respond to something vague, and what you make of it is the material. The Rorschach uses inkblots, and the person describes what they see. The Thematic Apperception Test uses pictures, and the person tells a story from them.

These tests are debated among professionals. Some question how consistent the results are, while others find them useful in skilled, experienced hands. There is one point of agreement: a projective test works best as part of a fuller assessment.

Culture and context shape what results mean

A test score is never read on its own. Your background and culture shape what a result means, and a skilled clinician keeps this in mind throughout.

Take the diagnosis of a personality disorder. The manuals ask whether behaviour departs from cultural expectations, which places culture at the centre of the judgement.

This matters for readers in many different countries. A behaviour seen as odd in one place may be ordinary elsewhere, and good testing respects that difference. There is progress here too: some tests are built with different cultural groups in mind.

What testing can and cannot tell you

It helps to hold testing in perspective. A test is a careful, standard way of observing. It records how you did on a set of tasks on one day, not the whole of who you are.

Results guide decisions; they do not replace them. A clinician weighs the scores against your history and your own account of things. The numbers serve the person, never the other way round.

Assessment is not only about naming problems. It can also point to strengths a person can build on.

If the testing is for your child

Parents often worry that a test will label their child. The wider aim is different. It is to understand how your child learns and copes, and what would help.

A good assessment does more than describe a problem. It ends with practical suggestions for support, at home and at school.

Who should carry out testing

Psychological tests are specialist tools. They should be chosen, given and read by trained professionals. In skilled hands, they add real value.

A good professional also knows the limits of a test. When unsure, they ask a colleague for input.

Testing is one step, and the person who does it matters. If you need to find someone, we have a guide on how to find the right therapist.

Related pages

• Psychological Assessment, the wider process that includes testing.
• Personality Assessment, a closer look at personality tests.

---

This page is for general education only. It is not a substitute for a professional assessment. Psychological tests should be administered and interpreted by qualified professionals.