Practitioner Development

Recent Developments in RFT Encourage Interbehavioral Field-Based Views of Human Language and Cognition: A Preliminary Analysis

Harte et al. (2024) · Perspectives on Behavior Science 2024
★ The Verdict

RFT is going field-based—start sampling language as a dynamic web, not single responses.

✓ Read this if BCBAs who teach language, social, or ACT skills to any age group.
✗ Skip if Clinicians who only handle simple motor chains with no verbal part.

01Research in Context

01

What this study did

Harte et al. (2024) looked at how Relational Frame Theory (RFT) talks about human language. They said the field should move from single-response charts to field-based views. A field view treats words as part of a big, living web, not as lone items.

The paper is conceptual. It gives no new data. It asks researchers to picture language the way physicists picture magnetic fields.

02

What they found

The authors found that current RFT models are too tidy. They miss how real talk shifts across people, places, and moments. A field approach can catch that motion.

They offer early steps, not finished tools. The goal is to guide future tests and interventions.

03

How this fits with other research

Harte et al. (2023) extends the same line. That paper shows how field ideas link to ACT defusion drills. It turns the 2024 call into a practical bridge for clinicians.

Greenlee et al. (2024) also extends the call. They give radar charts that can draw multidimensional verbal data. The charts are one way to picture the field the 2024 paper wants.

Dixon et al. (2025) sounds like a contradiction. It warns that swallowing RFT and ACT will shake behavior-analysis doctrine. But the clash is only in tone. Both papers agree the field must change; Dixon just amps the alarm while Harte maps the path.

04

Why it matters

If you run language or social-skills programs, start thinking in fields. Track how one word changes value across people and settings. Try brief pre-session probes that sample the child's full verbal web, not just target responses. Watch for Harte et al. (2023) style defusion links and Greenlee et al. (2024) style radar plots to reach peer review soon.

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Add one quick context probe: before your language lesson, ask the learner to relate the target word to three people or places and note any shifts in response.

02At a glance

Intervention
not applicable
Design
theoretical
Finding
not reported

03Original abstract

Relational frame theory (RFT) as a behavior-analytic approach to understanding human language and cognition is now over 40 years old. However, the last 8 years have seen a relatively intense period of empirical and conceptual developments within the theory. Some of this work has begun to draw on early and much underplayed features of RFT, including field-theoretical analyses and concepts. These analyses are relatively nascent and thus the current article aims to provide a relatively detailed example of a field-theoretical analysis of a specific RFT research program. We begin with a brief overview of the “traditional” RFT approach to human language and cognition, followed by a summary of recent research involving the implicit relational assessment procedure (IRAP) and the differential arbitrarily applicable relational responding effects (DAARRE) model. We then go on to consider the DAARRE model in the context of J. R. Kantor’s interbehavioral formula for the psychological event. Having done so, we conclude that the challenge involved in analyzing increasingly complex forms of human language and cognition appears to call for more field-based theorizing in some form or another.

Perspectives on Behavior Science, 2024 · doi:10.1007/s40614-024-00407-3