A comprehensive psychological evaluation draws on several categories of tests. Each answers a different kind of question, and the picture emerges from how they fit together. Here is what the main categories measure, in plain language.
Cognitive (intellectual) testing
Cognitive tests look at reasoning and problem-solving: verbal understanding, visual and spatial reasoning, working memory and processing speed. They describe how a person thinks and learns, and they identify relative strengths and weaknesses. A single overall score is far less useful than the pattern across areas, which is why reports discuss the profile rather than one number.
Achievement (academic) testing
Achievement tests measure learned skills: reading (decoding, fluency, comprehension), written expression, spelling and mathematics. Comparing achievement with cognitive ability and with age or grade expectations is central to identifying learning differences and to documenting the need for school or college supports.
Attention, executive function and memory
These measures look at sustained attention, impulse control, mental flexibility, planning and organization, and different kinds of memory. They are important for ADHD questions, but also for understanding learning, mood and the effects of stress or fatigue.
Emotional and behavioral measures
Standardized rating scales and self-report questionnaires describe mood, anxiety, behavior, social functioning and stress, often from several perspectives (the person, a parent, a teacher or partner). Comparing viewpoints across settings is informative in itself. These measures help distinguish, for example, attention problems driven by anxiety from those driven by ADHD.
Adaptive functioning
Adaptive measures describe everyday independence: communication, daily living skills, social skills and, for adults, work and community functioning. They show how abilities translate into real life, which is often the most practical part of a report.
Developmental and diagnosis-specific measures
Some questions call for specialized instruments, such as autism-specific measures that structure observation of social communication and behavior. These are used alongside, not instead of, the broader categories above.
Why "standardized" matters. Standardized tests are given the same way to everyone and scored against large comparison groups of the same age. That is what allows a clinician to say a result is typical, a relative strength or a meaningful difficulty, rather than guessing.
How the fNIRS layer fits at Amlea
At Amlea, standardized testing is paired with a 30-minute fNIRS session that observes prefrontal engagement and settling while a person works. It is not a test in the sense above and it does not produce a diagnosis. It adds context alongside the scores and history. Read more about fNIRS.