Practitioner Development

Observer training revisited: a comparison of in vivo and video instruction.

Dempsey et al. (2012) · Journal of applied behavior analysis 2012
★ The Verdict

Short training videos get observers just as accurate as live demos while saving sessions.

✓ Read this if BCBAs who train staff or parents to collect reliable data in clinics or schools.
✗ Skip if Practitioners whose only data source is automated software sensors.

01Research in Context

01

What this study did

The team wanted to know if watching videos can teach undergraduates to score behavior as well as watching live. They used an ABAB reversal design. Each student rotated through both training styles while scoring the same child behaviors.

No diagnoses were reported for the child being observed. The only goal was to see how fast and how well the undergraduates learned to record what they saw.

02

What they found

Both groups ended with the same test scores. The video group got there in fewer sessions. In other words, video training saved time without hurting quality.

03

How this fits with other research

Marroquin et al. (2014) extends the idea to parents. Mothers of autistic teens watched short clips and then ran compliance training correctly. Their kids started complying, showing the same time-saving benefit outside the lab.

Matey et al. (2019) used the same reversal design but added a twist. When undergraduates had to give feedback right after watching, their data got worse. Griffith et al. (2012) kept the job simple: watch and score. The clean task may explain why their video group stayed accurate.

Siegel et al. (1986) showed that pigeons also learn faster by watching. The pattern across species hints that observational learning is a basic, robust process.

04

Why it matters

You can replace some live observer training with short videos and still get reliable data. This frees up supervisor time and lets staff review clips at their own pace. Try starting new RBTs with a five-minute scoring video before you bring them into the classroom. Check their counts, give brief feedback, and move on.

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Send new hires a three-minute clip of a sample session and have them score along; compare their sheet to the master key before the first in-vivo observation.

02At a glance

Intervention
behavioral skills training
Design
reversal abab
Sample size
59
Population
not specified
Finding
null
Magnitude
negligible

03Original abstract

We compared the effects of 2 observer-training procedures. In vivo training involved practice during actual treatment sessions. Video training involved practice while watching progressively more complex simulations. Fifty-nine undergraduate students entered 1 of the 2 training conditions sequentially according to an ABABAB design. Results showed that the 2 training methods produced almost identical scores on a posttraining observational test; however, the video method required fewer training sessions to complete.

Journal of applied behavior analysis, 2012 · doi:10.1901/jaba.2012.45-827