BJC study guide
BJC · Work through your exam, one topic at a time.
The BJC is a Japanese certification in behavior analysis, positioned in the same professional space as behavior-analytic credentials awarded elsewhere: it signals that a practitioner can describe behavior in observable terms, measure it reliably, design and evaluate interventions, and act ethically toward clients and supervisees. Candidates are typically people working in applied settings - support for autistic children and adults, school-based consultation, disability services, or clinical teams - who want their applied skills recognized and who often need a credential for role progression or supervisory responsibility. The BJC study guide has 7 sections and about 1,935 words.
01Concepts and Principles of Behavior Analysis
Behavior analysis rests on a small set of interlocking principles. Reinforcement increases the future probability of a response class; punishment decreases it.
332 words, about 2 min02Measurement and Data Interpretation
The first decision is what to measure and how . Continuous measurement captures every instance: frequency/count, rate (count per unit time), duration (total or per occurrence), latency (time to onset), and inter-response time.
304 words, about 2 min03Experimental Design and Behavior-Change Procedures
Single-case designs establish experimental control by showing that behavior changes when, and only when, the independent variable is manipulated. Reversal (ABAB) designs require a return to baseline; they are inappropriate when behavior is dangerous or irreversible.
266 words, about 1 min04Assessment and Functional Behavior Assessment
Assessment answers referral questions: what is the behavior, when does it occur, and why. Indirect methods (interviews, rating scales, questionnaires) are efficient but rely on recall and are less reliable.
255 words, about 1 min05Intervention Planning and Implementation
Intervention planning begins with the FBA hypothesis and links each component to function. Function-based interventions outperform generic packages.
272 words, about 1 min06Ethics and Professional Conduct
Behavior analysts owe clients beneficence and nonmaleficence - do good and avoid harm. Autonomy respects client choice and assent.
258 words, about 1 min07Supervision and Case Management
Supervisors are responsible for the competence, ethics, and outcomes of supervisees. Effective supervision includes clear expectations, a written contract, individualized goals, direct observation of the supervisee's work, timely feedback, and documentation of supervision hours and activities.
248 words, about 1 min