Understanding assessment
Screening, assessment and diagnosis: what is the difference?
These terms can appear together when you look for support for your child. Knowing what each appointment covers helps you ask useful questions and understand its limits.
Screening alone does not establish a diagnosis. Ask which assessment is offered, who conducts it and what its results can tell you.
Three terms, different questions
Developmental screening
A brief initial check that may indicate a need for a closer evaluation. A screening result is not a diagnosis.
Assessment
A more detailed look at development, skills, strengths and needs. It may involve observation, family questions and assessment tools.
Diagnosis
A professional conclusion informed by developmental history, observation and relevant criteria. An appointment to assess one skill does not automatically include an autism diagnosis.
Before booking: clarify the purpose
A useful opening question is: “What is this appointment for, and what will I receive afterwards?” You can also ask:
- Is this a consultation, screening, specialist assessment or diagnostic evaluation?
- Who will conduct it, and what are their specialty and qualifications?
- Will there be a written report? What will it cover, and what can it be used for?
- Does the fee include discussing the results? Might another appointment or referral be needed?
Bring examples from everyday life
Write down your questions and a few brief examples of what you want to discuss: when it happens, the setting and what helps your child. Ask whether previous reports are needed and which official channel to use for sharing them. Avoid posting your child’s details or reports in public comments.
When discussing the results
If you have concerns about your child’s development, discuss them with their healthcare provider, who can help you navigate screening, assessment and diagnosis.
- Ask for plain-language explanations and a summary of strengths and needs.
- Ask which questions the assessment answered and what remains uncertain.
- Discuss the next step and who is responsible: follow-up, further assessment, referral or a support plan.
- Confirm fees and scheduling before agreeing to a program.
Sources and scope
The distinction between screening, evaluation and diagnosis is informed by the CDC. The practical booking questions are preparation aids, not a specification of every appointment at FAD.
This guide supports learning and preparation for discussion. It is not a diagnosis or a recommendation for an individual treatment plan.