
Psychological Assessments in Perth
Gain clarity and confidence with a comprehensive psychological assessment tailored to your needs
What are the different types of assessment?

Psychological Assessment
A psychological assessment is a general term, used for comprehensive evaluation of an individual's psychological functioning, including cognitive, emotional, behavioral, and personality characteristics. It involves the use of various methods, and tools to gather information about the individual's thoughts, feelings, behaviours, and experiences from multiple sources (clinical interviews, standardised tests, self-report questionnaires, observation, and collateral information from other sources such as family members, teachers, and so on). These assessments are done by a clinical or general Psychologist to inform what kind of treatments they need.

Psychometric Assessment
A psychometric assessment is a systematic method for measuring psychological constructs, such as personality traits, cognitive abilities, or emotional functioning. These assessments typically involve the administration of standardised tests, questionnaires, or other assessment tools to individuals, often used in various contexts, including clinical psychology, educational settings, human resources, and research. These assessments are designed to tap into particular cognitive (thinking) abilities (e.g. intelligence, or more generally memory, attention etc).

Neuropsychological Assessment
Neuropsychological assessment is a specialised evaluation that can only be conducted by a trained Neuropsychologist, and involves a combination of psychometric testing and psychological assessment. It considers cognitive, medical, developmental, social, family and mental health factors, to determine what a person’s strengths and weaknesses are, why they might be happening, and how this impacts a person’s ability to function in their environment. The results of the assessment help inform diagnosis, treatment planning, rehabilitation strategies, and recommendations for individuals with neurological conditions.

Psychiatric Assessment
Psychiatric assessment can occur after a person has already seen a psychologist or neuropsychologist, and is then seeking medication from a Psychiatrist. The main goal is to comprehensively screen for any physical or psychiatric comorbidities that can preclude a person from receiving certain medications. Some conditions (e.g. heart disease, drug use, certain mental illnesses) may make someone ineligible for some types of medication.
Mental Health Assessment
Mental Health Assessment is done by a GP. This usually involves a short questionnaire to determine whether further support is needed, such as a referral to a specialist and/or a Mental Healthcare Plan.
How a psychological assessment can help you
A psychological assessment in Perth helps you better understand how a person thinks, learns, and responds to different situations. It provides clear insights into both strengths and areas where support may be needed.
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This process can support early identification of concerns and guide accurate diagnosis, allowing you to take the right steps forward with confidence.
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A psychological assessment may assist in:
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Identify strengths and challenges with a mental health assessment
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Support accurate diagnosis of developmental, behavioural, or emotional concerns
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Guide personalised treatment or intervention plans
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Advice on school support and learning adjustments
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Provide practical recommendations for parents, carers, teachers, and health professionals
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Understand social, emotional, and behavioural functioning
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Track progress and refine strategies over time

Our comprehensive assessments
Calder Psychology offers comprehensive and thorough psychological assessments to help you gain a better understanding of your mental health, identify strengths and weaknesses in intellectual and learning capacity, social and emotional functioning, and behavioural difficulties.
We ​provide comprehensive evaluations to help you gain a better understanding of your mental health and identify areas for growth and improvement.
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Our comprehensive assessments cover a range of areas to provide a clear understanding of cognitive, behavioural, and emotional functioning.
Attention Deficit Hyperactivity Disorder (ADHD)
This assessment can help identify patterns of attention, impulsivity, and hyperactivity. Understanding these behaviours allows for tailored strategies to improve focus, organisation, and daily functioning.
Autism Spectrum Disorder (ASD)
A neuropsychological assessment evaluates social, communication, and behavioural patterns to support an accurate diagnosis. This helps guide personalised interventions and school or home support strategies.
Executive Functioning
Assessment of executive functioning examines skills such as planning, organisation, problem-solving, and self-regulation. This assessment can pinpoint strengths and weaknesses to inform targeted interventions.
Cognitive Assessment
Cognitive assessments measure intellectual abilities, learning potential, and memory function. Incorporating an assessment provides insight into how thinking skills impact daily life, learning, and emotional wellbeing.
Frequently Asked Questions
1. How do I book a psychological assessment?
New clients can book by calling (08) 6490 9685, 0401 797 097, emailing reception@calderpsychology.com, or using the Contact Us form. Current clients can use the “Book Now” button.
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2. What does a psychological assessment involve?
Assessments measure cognitive, behavioural, and emotional functioning. They may include questionnaires, interviews, and standardised tests to provide clear insights and personalised recommendations.
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3. How long does a psychological assessment take?
Assessment appointments usually take 1–3 hours, depending on the type and complexity. Some assessments, like ADHD or ASD evaluations, may require multiple sessions.
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4. How much does a psychological assessment cost?
Fees vary depending on the assessment type. Standard consultation fees start at $195–$240, with higher fees applying to detailed assessments or reports. Medicare rebates may be available with a Mental Health Treatment Plan.
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5. What if I need to cancel or reschedule?
Please notify us at least three business days before your appointment to avoid cancellation fees. Fees vary depending on notice, and emergencies or unavoidable circumstances can be discussed with your psychologist.
