Indirect assessment

Indirect describes the evidence source

The person who completes an interview or form reports what they remember, experienced, or understood. A record reports what another author documented for a particular purpose and period. Both can be valuable. Neither is the same as a trained observer measuring the response in the relevant setting today.

The CASP ABA Practice Guidelines Version 3.0 public summary places assessment and treatment planning within standards of care for ABA behavioral health treatment of people diagnosed with autism. Full access requires a license. The public page does not prescribe a particular indirect tool, so this article presents an editorial workflow rather than licensed CASP procedure.

The current BACB BCBA Test Content Outline, 6th edition lists identifying relevant educational, medical, and historical records, integrating cultural variables, and designing several direct assessment types. The outline omits "indirect assessment" as a standalone task. It is examination content, not a clinical protocol or authorization to practice.

Open and structured methods answer different questions

A practice may track records review as a separate workflow. It still supplies indirect evidence when the assessor did not directly observe the event being described.

Fryling and Baires discuss the practical distinction between open- and closed-ended indirect assessments. Closed-ended tools constrain responses to preset options; open-ended formats allow follow-up and individualized detail. The paper is a conceptual discussion using selected instruments as examples. Neither format therefore identifies function by itself.

Ask for examples, comparisons, and source dates

Useful interview prompts move from labels to observable examples:

• What does the response look or sound like, including speech, AAC, gesture, movement, and early signals?
• What was happening before, during, and after a recent example?
• When would the same situation occur without the response?
• What helps, what makes the situation harder, and what has already been tried?
• What does the person want others to understand or change?
• Could pain, illness, sleep, medication, sensory access, communication, trauma, skill demands, or environmental barriers matter?
• Which details were witnessed directly, reported by someone else, or inferred?
• What dates, settings, people, and response forms does this account cover?

Interview the person directly with the communication support they need. Relevant partners can add perspectives rather than replace the person's account. Preserve disagreement. Two respondents may have seen different settings, definitions, or time periods.

For covered BCBA and BCaBA certificants and applicants, the current BACB Ethics Code addresses understandable communication, client and stakeholder involvement, informed consent and assent when applicable, medical needs, context-responsive assessment, referral, written results, and appropriate data collection. BACB has no separate jurisdiction over organizations or corporations. Other roles and organizations need their own professional, legal, payer, school, and privacy controls.

Scores and hypotheses need corroboration

An indirect assessment can identify what to examine next. It may help define a response, select observation times, identify safety or health routes, or design a careful comparison. A high category score is evidence about responses to that instrument. It is not direct evidence that a consequence maintains the behavior.

One small study by Saini and colleagues compared two independent open-ended interviews and later functional analyses for four people with severe behavior disorders. Exact agreement between interview interpretations was 75%, while correspondence with the functional-analysis outcome was 50%. Those four cases do not supply a universal validity rate. They show why fluent interviewing and agreement between interviewers cannot substitute for evidence appropriate to the conclusion.

Report the instrument or interview version, administrator, respondents, relationship to the person, dates, settings, recall window, scoring rules, missing answers, disagreements, and limits. Keep source statements separate from clinician interpretation. A later direct observation that conflicts with an interview should prompt reconciliation, not silent replacement of either record.

Communication access affects the evidence

An interview conducted without an accessible response mode can miss the person's priorities and dissent. ASHA's AAC practice portal says people who use augmentative and alternative communication should always have access to their tools or devices. Confirm vocabulary, positioning, charging, motor access, partner support, wait time, and a backup method.

Avoid using speech, eye contact, reading level, or one motor action as a condition of participation. Offer breaks and the ability to decline a question. An assessment should not demand disclosure of trauma or private history beyond what the question and applicable authority require.

A fictional indirect-assessment example

Malik is a fictional fourteen-year-old who wants homework technology to be easier to use. His parent reports that he closed the laptop during six of the last eight writing periods. Malik reports screen discomfort in four of those six periods and says multi-step instructions are hard to locate. His teacher recalls one similar event at school in the past month. A structured caregiver form produces its highest category score for task removal.

The clinician records each statement, respondent, timeframe, and scoring rule. The summary identifies screen access, instruction design, task demands, and the consequences of closing the laptop as hypotheses to examine. The response remains unclassified. The clinician also routes the reported discomfort for appropriate health review.

Malik's requested brightness change, accessible instruction layout, and break message can be supported immediately when safe and feasible. Direct observation can then sample eligible writing periods with those supports documented. The team reports observed exposure separately from the parent-reported 6 of 8, preserving the distinction between indirect and direct evidence.