What Is a Cognitive Assessment (IQ Test)?
A cognitive assessment, commonly referred to as an IQ test, helps us understand how a child thinks, learns, remembers, reasons and processes information.
Although the term “IQ test” is widely used, a cognitive assessment provides much more information than a single IQ score. It identifies patterns across different areas of thinking and learning, providing a clearer picture of a child’s individual strengths and support needs.
Cognitive assessments are completed individually using standardised, age-appropriate activities. They are not pass-or-fail tests and do not measure a child’s worth, effort or future potential.
What does a cognitive assessment measure?
The abilities assessed will depend on the child’s age, individual needs and the assessment selected. A cognitive assessment may explore:
- Verbal reasoning and understanding
- Visual-spatial abilities
- Non-verbal and fluid reasoning
- Working memory
- Processing speed
- Auditory and visual processing
- Long-term retrieval of information
- Problem-solving and responses to unfamiliar tasks
- Overall cognitive functioning, which may be represented by an IQ score
Examining the individual areas of a child’s cognitive profile is often more meaningful than focusing only on an overall IQ score. A child may demonstrate considerable strengths in one area while finding another type of task more challenging.
Why might a cognitive assessment be recommended?
A cognitive assessment may be helpful when a child:
- Is experiencing difficulty learning or keeping up at school
- Appears to understand information but has difficulty demonstrating their knowledge
- Requires more repetition, time or support than expected
- Shows significant differences across areas of learning and development
- May have an intellectual developmental disorder or developmental delay
- May be intellectually gifted
- Is undergoing an assessment for a neurodevelopmental condition
- Requires information to support educational planning or reasonable adjustments
- Has experienced a change in their learning, memory or cognitive functioning
- Would benefit from a clearer understanding of their individual learning profile
A cognitive assessment may form one part of a broader developmental, educational or diagnostic assessment. An IQ test does not diagnose autism, ADHD or a specific learning disorder on its own.
Who completes a cognitive assessment?
Cognitive assessments at The Daisy Clinic are completed by psychologists who are trained in administering, scoring and interpreting standardised psychological assessments. Depending on the assessment pathway, components may also be completed by a provisionally registered psychologist under the supervision of an experienced registered psychologist. Families will be informed if this applies.
The psychologist’s role involves much more than administering an IQ test. The psychologist will:
- Review the child’s developmental, educational and health history
- Identify the questions the assessment needs to answer
- Select the most appropriate assessment
- Observe how the child approaches and responds to different tasks
- Consider factors that may have influenced their performance
- Score and interpret the results
- Integrate information from families, educators and other professionals
- Prepare a written report with practical recommendations
- Provide feedback and discuss appropriate next steps
A cognitive assessment must be interpreted within the context of the whole child. An IQ score viewed in isolation cannot provide a complete understanding of a child’s abilities, functioning or support needs.
What types of cognitive assessments do we use?
The Daisy Clinic has access to a range of standardised cognitive assessments. Our psychologists select the most appropriate assessment based on the child’s age, communication abilities, developmental profile, cultural and linguistic background, accessibility needs and the reason for referral.
- Wechsler Preschool and Primary Scale of Intelligence – Fourth Edition (WPPSI–IV): The WPPSI–IV is designed for young children aged approximately 2 years 6 months to 7 years 7 months. It explores areas including verbal comprehension, visual-spatial abilities, fluid reasoning, working memory and processing speed. It can provide information about a young child’s overall cognitive functioning and their pattern of strengths and support needs.
- Wechsler Intelligence Scale for Children – Fifth Edition (WISC–V): The WISC–V is commonly used with children and young people aged 6 to 16 years. It examines verbal comprehension, visual-spatial abilities, fluid reasoning, working memory and processing speed. It may provide an overall IQ score, together with more detailed information about performance across the different areas assessed.
- Universal Nonverbal Intelligence Test – Second Edition (UNIT2): The UNIT2 is a non-verbal cognitive assessment for children and young people aged approximately 5 to 21 years. It may be particularly helpful for children with limited spoken language, communication differences, hearing impairments, or cultural and linguistic backgrounds that make a language-based assessment less appropriate. The tasks can be presented and answered without relying on spoken language.
- Leiter International Performance Scale – Third Edition (Leiter-3): The Leiter-3 is a non-verbal assessment suitable for children and adults aged approximately 3 to 75 years. It may be appropriate for children with minimal spoken language, autism, developmental disabilities or other needs that affect their participation in verbally based testing. It can assess non-verbal intelligence and cognitive abilities without requiring spoken responses.
- Woodcock-Johnson IV Tests of Cognitive Abilities: The Woodcock-Johnson IV provides a broad assessment of cognitive abilities across childhood and adulthood. It can examine areas such as comprehension and knowledge, fluid reasoning, processing speed, working memory, auditory processing, visual processing and long-term retrieval. It may also be used alongside academic achievement testing when investigating a child’s broader learning profile.
How do we choose the right assessment?
There is no single cognitive or IQ test that is appropriate for every child. Before selecting an assessment, our psychologists consider:
- The child’s age and developmental level
- Expressive and receptive language abilities
- Cultural and linguistic background
- Motor, sensory and accessibility needs
- Attention, regulation and stamina
- The purpose of the assessment
- Whether academic, adaptive, developmental or diagnostic assessment is also required
In some circumstances, an overall IQ score may not be the most accurate or meaningful representation of a child’s abilities. This can occur when there are significant differences between the areas assessed or when factors such as communication, attention, anxiety, fatigue or motor demands affect performance. In these situations, the psychologist may place greater emphasis on the child’s pattern of strengths and difficulties rather than a single overall score.
What happens during a cognitive assessment?
The process generally begins with an initial consultation with a parent or caregiver. This allows the psychologist to understand the child’s developmental, educational and health history, current concerns and the questions the assessment needs to answer.
The child then completes a series of structured activities with the psychologist. Depending on the assessment, these may involve:
- Answering questions
- Identifying patterns or relationships
- Working with blocks, pictures or other visual materials
- Remembering and manipulating information
- Solving unfamiliar problems
- Completing straightforward tasks within a set timeframe
Assessment sessions are completed in a quiet and supportive environment. Breaks can be incorporated when needed.
The psychologist will also observe how the child approaches the activities and consider factors such as communication, attention, regulation, anxiety, motivation, fatigue and sensory needs when interpreting the results. Information may also be gathered from parents, teachers and other professionals so the findings can be understood within the context of the child’s everyday life.
What happens after the assessment?
Once the assessment is complete, the psychologist reviews and interprets all available information. A written report may include:
- An explanation of the child’s cognitive profile
- Areas of relative strength and difficulty
- IQ and index scores, where valid and appropriate
- Factors that may have influenced performance
- Practical recommendations for home and school
- Suggested educational adjustments or intervention priorities
- Recommendations for further assessment or support
What is the difference between a cognitive assessment and a learning assessment?
A cognitive assessment or IQ test examines the thinking processes that support learning. A learning or academic assessment measures skills such as:
- Reading
- Spelling
- Written expression
- Mathematics
- Oral language
- Academic fluency
When there are concerns about a possible specific learning disorder, such as dyslexia, dysgraphia or dyscalculia, cognitive and academic assessments may be completed together. This provides a more comprehensive understanding of how the child learns, where difficulties are occurring and what support may be helpful.
A strengths-based approach to cognitive assessment
At The Daisy Clinic, cognitive assessment is about understanding the whole child, not simply producing an IQ score. Our psychologists consider the child’s developmental history, everyday functioning, educational environment, emotional wellbeing and presentation throughout the assessment. Where appropriate, we collaborate with families, schools and other members of the child’s multidisciplinary team. Our aim is to provide meaningful and practical information that helps families, educators and professionals understand the child and respond to their individual learning and support needs.
Enquire about a cognitive assessment
If you are wondering whether a cognitive assessment or IQ test may be appropriate for your child, contact The Daisy Clinic. Our team can discuss your concerns, explain the available assessment options and help determine the most suitable next step.
