What is "psychological assessment" and do I need one?

The term "psychological assessment" comes up often, but it is not always clear what it actually involves, or whether it is something you need before starting therapy. This post explains what “psychological assessment” is, how it differs from an initial intake session, and the situations in which one might be recommended.

What a psychological assessment actually involves

A psychological assessment is a structured process used to understand a person's cognitive (brain function-related, such as memory, attention, and reasoning), emotional, or behavioural functioning in more detail than a standard clinical assessment. It typically involves a combination of clinical interviews, standardised questionnaires, and in some cases, formal testing.

This is different from the assessment that happens in the first session or two of general therapy. Every course of therapy begins with some form of assessment, in the sense of gathering background information and understanding current concerns. A formal psychological assessment is more specific and more structured. It is designed to answer a particular question, such as whether someone meets the criteria for ADHD, or how their cognitive functioning compares to the general population to determine whether they meet special needs criteria.

When an assessment might be recommended

There are several common reasons a psychologist might recommend a formal assessment.

Diagnostic clarity: If there is uncertainty about whether a person's difficulties reflect a specific condition, such as ADHD, autism, a learning difficulty, or another diagnosable presentation, an assessment can provide clearer answers. This is particularly relevant for adults who suspect they may have gone undiagnosed for years, since many conditions present differently in adulthood than they do in childhood.

Understanding cognitive functioning:  Some assessments focus on cognitive strengths and weaknesses, such as memory, attention, processing speed, or executive functioning. This can be useful for identifying why someone is struggling in a particular area of life, such as study, work, or daily organisation.

Supporting documentation:  Assessments are sometimes required for practical reasons, such as applying for workplace accommodations, educational support, or documentation required by another service.

Informing treatment: In some cases, an assessment helps clarify what kind of therapy or support is likely to be most effective, particularly when a person's presentation is complex or when previous treatment has not been as helpful as expected.

What the process usually looks like

A formal assessment usually begins with a detailed clinical interview covering developmental history, current functioning, and relevant background. This is followed by one or more standardised measures, which may include questionnaires completed by the person themselves, and in some cases by someone who knows them well, such as a parent or partner.

Depending on what is being assessed, this process might be completed in a single extended session or spread across several appointments. Once complete, the psychologist prepares a report summarising the findings, along with any diagnostic conclusions and recommendations for next steps.

Do you need one?

Not everyone who sees a psychologist needs a formal assessment. Many people benefit from therapy without ever undergoing one. An assessment becomes relevant when there is a specific question that needs answering, whether that is diagnostic clarity, documentation for another purpose, or a clearer understanding of what is driving a particular difficulty.

If you are unsure whether an assessment is relevant to your situation, this is a reasonable thing to raise directly with a psychologist. In many cases, this can be discussed in an initial session, where your psychologist can help clarify whether general therapy, a formal assessment, or a combination of both is the most appropriate starting point.

---

Resilient Path Clinical Psychology is a private practice located on Toorak Road, on the Camberwell-Burwood border, offering therapy for adults, adolescents, and couples, available in-person and via telehealth. Serving Camberwell, Burwood, Ashburton, Glen Iris, Surrey Hills, Canterbury, Balwyn, Mount Waverley, Glen Waverley, Box Hill and surrounding areas. Medicare rebates available with a Mental Health Care Plan. If you have questions about getting started, you are welcome to get in touch.