Comprehensive Autism Testing for Children, Adolescents and Adults

Finding Answers, Increasing Understanding, and Identifying the Right Next Steps

If you have spent years feeling different, or if you are watching your child struggle in a world not built for them, an autism evaluation by a qualified psychologist can be the first step toward a structured, evidence-based plan for support and belonging.

The path toward understanding neurodivergence—whether for yourself or your child— can feel emotionally exhausting, unpredictable, and confusing. If you or your child are indeed Autistic, it can be both freeing and frightening to know.

At Clarity Psychological Services, we believe that an Autism diagnosis should not confine you; it should serve as a foundation for self-regulation, self-advocacy, self-acceptance so you can live a meaningful and satisfying life.

What Is Involved In Autism Testing?

Autism testing is a comprehensive clinical evaluation designed to understand how a person communicates, relates to others, processes sensory information, and functions in daily life.

Individualized Assessment

At Clarity Psychological Services, Autism assessment is not a rote process applied the same way to every person. Each evaluation is tailored to the individual and evolves with clinical judgment as we develop a fuller understanding of the individual’s developmental profile.

Differential Diagnosis

Autism can overlap with ADHD, anxiety, depression, and learning differences. For that reason, we carefully assess patterns of daily functioning to clarify the underlying neurodevelopmental processes to reach an accurate diagnosis. This approach also helps us develop a more complete understanding of the whole person.

Diagnostic Instruments with Established Clinical Validity

At Clarity, we use validated assessment instruments with strong clinical utility, diagnostic sensitivity, and interpretive depth. Our methods support diagnostic precision and meaningful treatment planning.

Some of the measures we use include:

  • ADOS-2 (Autism Diagnostic Observation Schedule): A structured, standardized assessment used to observe social communication and repetitive behaviors in the testing setting.

  •  MIGDAS (Modified Interview for Genetic Disorders of Autism Spectrum): A sensory-based interview that supports naturalistic conversation and helps clinicians capture aspects of neurodivergence that checklists may miss.

  • ADI-R (Autism Diagnostic Interview-Revised): A structured caregiver interview that gathers detailed developmental history and supports diagnostic clarification alongside direct observation measures.

  • CARS-2 (Childhood Autism Rating Scale, Second Edition): A clinician-rated tool used to assess the presence and severity of autism-related characteristics.

  • SRS-2 (Social Responsiveness Scale, Second Edition): A rating scale that helps quantify social communication differences and autism-related traits across settings.

  • Vineland-3 (Vineland Adaptive Behavior Scales, Third Edition): An adaptive functioning measure that helps clarify how social, communication, and daily living skills present in everyday settings.

  • Comprehensive Clinical Inquiry: We also assess social relatedness, language, attention, memory, play, adaptive skills, and behavior to build a fuller understanding of strengths and needs.

Evaluations Across the Lifespan

Because autism looks different depending on age, gender, and developmental stage, each evaluation is customized to the individual’s characteristics and clinical needs.

Early Childhood (0–5): We assess for early indicators such as sensory reactivity, repetitive play patterns, differences in eye contact, and early social communication challenges, with the goal of identifying strategies that strengthen regulation and development.

School-Age (5+): We evaluate children who struggle with social reciprocity, masking-related fatigue, or distress associated with changes in routine, environmental demands, and expectations.

Teens: During adolescence, autism may become more clinically apparent as social, academic, and executive functioning demands increase. This is especially true for girls, who are often identified later because their presentation may differ from more stereotyped profiles and because they may more effectively mask social confusion, sensory distress, or rigid coping patterns. As a result, they may appear socially competent on the surface while having an internal experience characterized by significant exhaustion, anxiety, and a persistent sense of not fitting in or belonging.

Adults: For adults who have spent years questioning their experiences, evaluation can clarify late-identified autism and the cumulative burden of functioning in environments that may not align with their needs.

From Diagnostic Clarification to Clinical Planning

A diagnosis is most clinically useful when it leads to a clear plan. At Clarity Psychological Services, a comprehensive evaluation is designed not only to support diagnostic accuracy, but also to guide individualized recommendations across educational, therapeutic, occupational, and family systems.

Educational Planning: Findings can inform IEP or 504 development, clarify support needs, and strengthen access to appropriate academic accommodations for school-aged children, as well as college students.

Occupational and Functional Recommendations: For adults, findings may help justify workplace accommodations, suggest better communication strategies, improve interpersonal relationships, and provide a more accurate understanding of functional needs across settings.

Treatment Planning: Evaluation results can help align interventions, including CBT, social learning, and other therapeutic approaches, with the individual’s neurodevelopmental profile

Family Guidance: A well-formulated evaluation can help families better understand behavioral patterns, reduce misinterpretation, and create more effective routines and expectations at home.