Functional analysis of the verbal interaction between psychologist and client during the therapeutic process.
Therapists shape client talk in real time by upping the quality of their reply each time the client edges closer to the session goal.
01Research in Context
What this study did
Capio et al. (2013) watched therapy sessions second-by-second. They coded every time a client spoke and every time the therapist answered.
The team asked one simple question: do therapists give better replies when client words land closer to the session goal? They looked at adult out-patients with mixed diagnoses.
What they found
Therapists did not answer at random. When client words edged nearer the target, the next therapist line grew warmer, clearer, or more approving.
That pattern is plain old shaping: reinforce closer and closer approximations. Client talk drifted toward the goal line over the hour.
How this fits with other research
Moss et al. (2009) guessed the same thing four years earlier. They used Skinner’s theory to explain why change talk in Motivational Interviewing works. Capio et al. (2013) gave the live data that proves the guess.
Larsen et al. (2023) also coded every therapist line, but during telehealth parent training. They saw coaches shift from prompts to praise as parents improved. Same micro-pattern, new setting.
Diaz et al. (2020) showed that college kids need their own spoken rules to pass tricky logic tests. Their mouths had to move before brains could leap. M et al. echo that idea: spoken words in the room drive the next step, whether the speaker is a student or a client.
Why it matters
Your next reply is never neutral. Track how close the client’s last line lands to the target, then make your answer bigger, warmer, or more precise. Do it live, every thirty seconds. Over the hour you will see the client’s own words stretch toward the goal just like a rat’s lever press moving closer to the corner.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Pick one client goal, watch a five-minute clip, and mark each client line as near or far; pair every near line with a quick labeled praise or reflection in your next session.
02At a glance
03Original abstract
The goal of this study is to analyze the verbal interaction that takes place between client and therapist over the course of a clinical intervention so as to analyze the potential learning processes that may be responsible for changes in the client's behavior. A total of 92 sessions were analyzed, corresponding to 19 clinical cases treated by 9 therapists specializing in behavioral therapy. The variables considered were therapist and client verbal behaviors, and these were categorized according to their possible functions and/or morphologies. The Observer XT software was used as a tool for the observational analysis. The results led to the conclusion that the therapist responds differentially to client verbalizations, modifying the verbal contingencies as his or her client content approaches or becomes more distant from therapeutic objectives. These results suggest the possible existence of verbal "shaping" processes through which the therapist guides the client's verbal behavior toward more adaptive forms. In addition, this study proposes an alternative to the traditional controversy regarding the relevance of the therapeutic relationship versus the treatment techniques used to explain clinical change. This article suggests that such differentiation is unnecessary because the therapeutic relationship and the treatment techniques should act in the same manner, this is, in providing the context for the occurrence of what is truly therapeutic, namely, the learning processes.
Behavior modification, 2013 · doi:10.1177/0145445513477127