Practitioner Development

Jacques Loeb, B. F. Skinner, and the legacy of prediction and control.

Hackenberg (1995) · The Behavior analyst 1995
★ The Verdict

Skinner’s call for prediction and control began with Loeb’s sea-urchin experiments, then grew into a socially useful science.

✓ Read this if BCBAs who teach history, craft grant rationales, or supervise RBTs.
✗ Skip if Clinicians wanting session-ready protocols or data sheets.

01Research in Context

01

What this study did

The author traced Skinner’s famous goal of prediction and control back to a biologist named Jacques Loeb. Loeb ran simple, hands-on experiments with sea urchins and plants. He wanted clear, repeatable results, not grand theories.

Skinner read Loeb and liked that no-nonsense style. The paper shows how that early link shaped Skinner’s later view that science must serve society.

02

What they found

Skinner’s core rule—change behavior by changing the world—was already alive in Loeb’s lab. The idea did not pop up in 1953. It traveled from 1890s biology to 1930s behaviorism.

Skinner then added a social layer: good science helps people live better, not just proves a point.

03

How this fits with other research

Thompson (2007) pushes the timeline even further back. He says Skinner’s cause-and-effect thinking really starts with the philosopher Hume, not Loeb. The two papers overlap: both map Skinner’s roots. They simply choose different starting points.

Imam (2001) and Moxley (2002) pick up after Loeb. They show that by 1945 Skinner swapped simple mechanism for Darwin-style selectionism. The present paper gives the before; these give the after. Together they draw a full arc.

de Lourdes R da F Passos et al. (2007) add linguist Leonard Bloomfield to the family tree. Like Loeb, Bloomfield wanted objective, physical talk about behavior. The studies fit side-by-side: one shows biological roots, the other linguistic roots, both feeding Skinner’s demand for clarity.

04

Why it matters

Knowing the back-story keeps you from treating “prediction and control” as just a slogan. It is a long, tested tradition that started in a sea-urchin lab. When you write goals or train staff, frame them in that same practical spirit: measure, change, check again. The lineage gives you confidence—and a fun fact for supervision.

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Open your next supervision with a two-minute story: how sea-urchin science shaped our field, then link it to the current client goal.

02At a glance

Intervention
not applicable
Design
theoretical
Finding
not reported

03Original abstract

The biologist Jacques Loeb is an important figure in the history of behavior analysis. Between 1890 and 1915, Loeb championed an approach to experimental biology that would later exert substantial influence on the work of B. F. Skinner and behavior analysis. This paper examines some of these sources of influence, with a particular emphasis on Loeb's firm commitment to prediction and control as fundamental goals of an experimental life science, and how these goals were extended and broadened by Skinner. Both Loeb and Skinner adopted a pragmatic approach to science that put practical control of their subject matter above formal theory testing, both based their research programs on analyses of reproducible units involving the intact organism, and both strongly endorsed technological applications of basic laboratory science. For Loeb, but especially for Skinner, control came to mean something more than mere experimental or technological control for its own sake; it became synonomous with scientific understanding. This view follows from (a) the successful working model of science Loeb and Skinner inherited from Ernst Mach, in which science is viewed as human social activity, and effective practical action is taken as the basis of scientific knowledge, and (b) Skinner's analysis of scientific activity, situated in the world of direct experience and related to practices arranged by scientific verbal communities. From this perspective, prediction and control are human acts that arise from and are maintained by social circumstances in which such acts meet with effective consequences.

The Behavior analyst, 1995 · doi:10.1007/BF03392710