The Sensory Profile 2 is a Pearson rating scale by Winnie Dunn measuring how children from birth to age 14 respond to sensory input at home and school.
Dr. Russell T. WarneChief Scientist
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The Sensory Profile 2 is a family of standardized questionnaires that describes how children from birth through age 14 respond to everyday sensory experiences such as sound, touch, movement, and visual input. Published by Pearson in 2014 and authored by occupational therapy researcher Dr. Winnie Dunn, it is a "rating scale," meaning that caregivers and teachers answer questions about behavior they observe rather than testing the child directly. It is not a performance test, and it is not an IQ test. This article covers what the Sensory Profile 2 measures, its forms and age ranges, how it is scored, what its limitations are, and how it differs from a cognitive ability test.
What the Sensory Profile 2 measures
According to Pearson, the Sensory Profile 2 provides standardized tools to evaluate a child's "sensory processing" patterns, which refers to the way the nervous system notices, organizes, and responds to sensory information. The questionnaires ask caregivers and teachers to report how often a child shows particular responses to sensory events during ordinary activities at home, at school, and in the community.
The instrument is built on Dunn's sensory processing framework. In Pearson's summary of the model, every person operates with a "neurological threshold" for sensory input: a high threshold means the person is slow to notice stimuli, while a low threshold means the person notices stimuli quickly. The framework then considers "self-regulation," or what the person does about that input. Passive self-regulation means letting sensory experiences happen and reacting afterward; active self-regulation means taking steps to manage or control the input. Crossing these two dimensions produces four characteristic sensory patterns, which the Sensory Profile 2 scores as separate quadrants.
The four sensory patterns
The quadrant scores are the signature feature of the instrument. Research on the Sensory Profile 2 labels the four scored patterns Seeking, Avoiding, Sensitivity, and Registration, and Pearson describes the children who show each pattern strongly in the following terms.
• Seeking (high threshold, active regulation): children with elevated seeking scores are described as busier and more engaged with sensory experiences than peers. They pursue extra input, such as touching objects, moving constantly, or making noise.
• Avoiding (low threshold, active regulation): children with elevated avoiding scores are more likely to retreat from unfamiliar or intense situations. They work to limit the sensory input coming at them.
• Sensitivity (low threshold, passive regulation): children Pearson calls "Sensors" react more quickly and more intensely to stimuli than others. They notice input readily but do not act in advance to control it.
• Registration (high threshold, passive regulation): children Pearson calls "Bystanders" miss more sensory cues than their peers. They may not notice their name being called or food on their face.
Higher or lower scores in a quadrant are compared with norms, and the publisher stresses that a pattern only matters clinically when it interferes with participation in everyday life. Occupational therapists use the pattern profile to plan supports, such as adding sensory value to tasks for seekers or reducing sensory load for avoiders.
Forms, age ranges, and languages
The Sensory Profile 2 is a set of forms rather than a single questionnaire. Pearson lists the following components in the complete kit, each normed for a specific age band.
• Infant form (birth to 6 months): completed by a caregiver about a baby's responses to sensory experiences.
• Toddler form (7 to 35 months): a caregiver questionnaire that Pearson notes was slightly expanded in this edition to reflect newer understanding of sensory processing at toddler ages.
• Child form (ages 3:0 to 14:11): the full caregiver questionnaire for preschool and school-age children.
• Short form (ages 3:0 to 14:11): an abbreviated caregiver questionnaire; published research describes it as a 34-item version used when time is limited.
• School Companion form (ages 3:0 to 14:11): completed by a teacher, so the same child can be rated in the classroom context and compared with caregiver ratings in a multi-rater report.
The second edition extended the upper age limit to 14 years 11 months, which the publisher says gives more flexibility for assessing preteens and younger teens. Spanish versions of the caregiver forms are available. For older adolescents and adults, Pearson publishes a separate instrument, the Adolescent/Adult Sensory Profile, a self-report questionnaire for ages 11 and up authored by Dr. Catana Brown and Dr. Winnie Dunn and published in 2002.
How the Sensory Profile 2 is administered and scored
Pearson reports a completion time of 5 to 20 minutes per form, with paper-and-pencil or online administration. Raters mark how frequently the child shows each behavior, and forms are scored either by hand or through Q-global, Pearson's web-based scoring platform. Depending on the form, results include Sensory System scores (for example, auditory or tactile processing), Behavioral scores, Sensory Pattern (quadrant) scores, and School Factor scores on the teacher form. The system uses cut scores with optional percentiles, so a child's ratings are interpreted relative to a normative sample rather than by raw counts alone.
The Sensory Profile 2 is a qualification level B product. Purchasing and interpretation are restricted to professionals with relevant training, typically occupational therapists, psychologists, and other clinicians or educators who meet the publisher's requirements. Results are usually integrated into a broader occupational therapy or psychoeducational evaluation rather than used on their own.
Strengths, limitations, and how it differs from an IQ test
A rating scale and an intelligence test answer different questions with different methods. An IQ test is a performance measure: the examinee solves problems, and the score reflects demonstrated reasoning under standard conditions. The Sensory Profile 2 instead quantifies an observer's impressions of behavior. That design is efficient and captures real-world functioning across settings, but it also means scores depend on the rater. Two adults can rate the same child differently because they see the child in different contexts or hold different expectations, which is why the multi-rater comparison exists. Rater effects are a general property of questionnaire measures, including behavior rating scales such as the BASC-3 and the SRS-2, and they are one reason schools that rely heavily on ratings can misjudge a child's underlying abilities, a concern discussed in the video above.
The evidence base for the Sensory Profile 2 has genuine strengths and documented gaps. A 2023 review by Licciardi and Brown in the Scandinavian Journal of Occupational Therapy, using the COSMIN standards for health measurement instruments, concluded that the instrument shows strengths in its design and "internal consistency," the extent to which items on a scale hang together. The same review found notable shortcomings in structural validity, cross-cultural validity, and hypothesis testing, and reported that the manual offered insufficient evidence on responsiveness and criterion validity. The authors judged the psychometric properties adequate overall while urging users to keep the shortcomings in mind. Translation studies continue to extend the tool internationally; a 2026 study in the journal Children, for instance, reported good reliability for a Greek adaptation of the short form.
Two boundaries matter for parents reading a Sensory Profile 2 report. First, it does not measure intelligence, academic skill, or perceptual accuracy; a performance measure such as the MVPT-4 assesses visual perception by having the child actually do tasks, which is a fundamentally different kind of evidence. Second, it does not diagnose any condition. Elevated scores describe sensory patterns, and only a qualified clinician can determine what those patterns mean within a full evaluation.
Where cognitive testing fits in
The Sensory Profile 2 tells a team how a child experiences sensory input; it says nothing about reasoning ability. When the question is cognitive, a measure built for that purpose is required. For adults 18 and older, the Reasoning and Intelligence Online Test, developed by RIOT IQ with psychometrician Dr. Russell T. Warne, measures cognitive ability with 15 subtests across six indices: verbal reasoning, fluid reasoning, spatial ability, working memory, processing speed, and reaction time. It takes about 52 minutes and reports scores on the familiar mean-100, standard-deviation-15 IQ scale. An online test does not replace an individually administered diagnostic evaluation, and no online measure screens for or detects any clinical condition. Adults who want a rigorous, research-based picture of their cognitive strengths can take the RIOT IQ test.
Frequently asked questions
Is the Sensory Profile 2 an IQ test?
No. It is a questionnaire rating scale completed by caregivers and teachers about a child's responses to sensory experiences. It involves no tasks for the child and produces no measure of intelligence.
What ages does the Sensory Profile 2 cover?
Pearson lists an overall range of birth through 14 years 11 months across the Infant, Toddler, Child, Short, and School Companion forms. A separate self-report instrument, the Adolescent/Adult Sensory Profile, covers ages 11 and older.
Who can administer the Sensory Profile 2?
It is a qualification level B instrument, so purchase and interpretation are limited to appropriately trained professionals, most often occupational therapists working within a broader evaluation.
How long does the Sensory Profile 2 take?
According to Pearson, each form takes about 5 to 20 minutes to complete, on paper or online, with scoring by hand or through the Q-global platform.
What are the four quadrants of the Sensory Profile 2?
Seeking, Avoiding, Sensitivity, and Registration. They come from Dunn's framework, which crosses neurological threshold (how quickly input is noticed) with self-regulation (whether the person actively manages input).
Can the Sensory Profile 2 diagnose autism or ADHD?
No. It describes sensory processing patterns that can inform a comprehensive assessment, but diagnosis of any condition belongs to qualified clinicians using multiple sources of evidence.
4. Licciardi, L., & Brown, T. (2023). An overview & critical review of the Sensory Profile - second edition. Scandinavian Journal of Occupational Therapy, 30(6), 758-770. pubmed.ncbi.nlm.nih.gov
5. Pipelias, P., Kanaka-Gantenbein, C., Papanikolaou, K., Tigani, X., Michou, M., & Pervanidou, P. (2026). Adaptation and psychometric validation of the Greek version of the Sensory Profile 2 Short Form. Children, 13(3), 315. pmc.ncbi.nlm.nih.gov
