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BCBA exam practice question: Behaviorism and Philosophical Foundations

Behaviorism and Philosophical FoundationsDifficulty 2/5

A behavior analyst rules out a complex explanation until simpler ones have been tested and rejected. Which philosophical assumption is being applied?

  1. AParsimony
  2. BPragmatism
  3. CEmpiricism
  4. DDeterminism
Show answer and rationale

Correct: A. Parsimony requires that simple, logical explanations be ruled out experimentally before more complex or abstract ones are considered. Determinism assumes lawful causes, empiricism requires objective observation, and pragmatism judges an account by whether it works.

  • D — Determinism is the assumption that the universe is lawful and orderly.
  • B — Pragmatism evaluates truth by effective action.
  • C — Empiricism is the practice of objective observation and measurement.

Concept being tested

8 questions. Goals of the science (description, prediction, control), philosophical assumptions (selectionism, determinism, empiricism, parsimony, pragmatism), radical behaviorism, and the dimensions of ABA. — 5% of the exam. Study guide for Behaviorism and Philosophical Foundations.

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Primary references

  1. BCBA Test Content Outline (6th ed.), in effect since 2025 — Behavior Analyst Certification Board (BACB) · primary · retrieved 2026-09-22, verified 2026-09-22
Last reviewed: 2026-10-07Reviewed by: Rachel Adams, MS, BCBA, Behavior analyst curriculum & item reviewHow we verify facts