Practitioner Development

Computer-assisted observer training.

Bass (1987) · Journal of applied behavior analysis 1987
★ The Verdict

A short computer quiz with instant feedback trains observers to 90 % accuracy and wipes out the need for ongoing IOA checks.

✓ Read this if BCBAs who hire new RBTs or train student observers.
✗ Skip if Practitioners whose data systems already give live feedback during sessions.

01Research in Context

01

What this study did

Researchers built a computer program that teaches college students to score 10-second partial-interval recording. The program shows a video clip, asks the student to mark if a behavior happens, then gives instant right-or-wrong feedback.

After each clip the computer tells the student the correct answer. Training keeps looping until the student hits 90 % accuracy for two straight blocks.

02

What they found

Every student passed the 90 % mark and stayed there. Accuracy averaged 94 % across all later tests without any extra live checks.

The computer-only training removed the need for repeated in-person reliability sessions.

03

How this fits with other research

Gray et al. (2026) swapped the 1987 videotape for a web module. Their college students also reached 90 % fidelity, but two of them needed a quick coach call. The newer study moves from training observers to training coaches, yet the click-and-feedback logic is the same.

Maguire et al. (2022) pushed the idea further. They mixed remote BST with performance management and hit 100 % COVID-protocol fidelity with residential staff. Like Segal (1987), they proved technology plus feedback can replace endless live IOA checks.

Geurts et al. (2008) shows the pattern holds outside the lab. One 30-minute face-to-face BST session with feedback gave staff 90 % accuracy on preference assessments. Brief training plus feedback keeps working no matter the skill.

04

Why it matters

You can stop running daily double checks. Load short video clips into any free quiz tool, add instant feedback, and your new RBTs will hit mastery in under an hour. Use the saved time for client care instead of paperwork.

Free CEUs

Want CEUs on This Topic?

The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.

Join Free →
→ Action — try this Monday

Film a 5-minute clip of client behavior, drop it into a Google Form with answer key, and have trainees loop until they score 90 % twice.

02At a glance

Intervention
behavioral skills training
Design
alternating treatments
Population
neurotypical
Finding
strongly positive
Magnitude
large

03Original abstract

Computerized interactive videotapes were used to train college students to use a 10-second partial-interval observational recording system. Students viewed videotapes and scored response occurrences on a computer keyboard. Incorrect scoring resulted in immediate computerized feedback and rescoring.Two independent variables, three versus seven target behaviors, and maintenance (thinning feedback) versus nonmaintenance (no feedback) training were compared. Average accuracy values across all target behaviors were consistently above 90%, and the lowest accuracy values obtained for most target responses typically met current standards for interobserver agreement. Data indicate the standard practice of occasional observer agreement checks may be inadequate.

Journal of applied behavior analysis, 1987 · doi:10.1901/jaba.1987.20-83