BJC case studies
BJC · Put your knowledge to work in context.
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 case studies are 5 cases and about 2,794 words.
1The Vanishing Effect in a Token Economy
A residential program for adults with intellectual disabilities runs a token economy in a sheltered workshop. Clients earn tokens for assembling mailers and exchange them Friday for snacks and privileges.
583 words, about 3 min2When the Graph Says Yes and the Classroom Says No
A behavior analyst consults in a self-contained classroom for students with autism. The target is disruptive behavior during independent work.
552 words, about 3 min3The FBA That Skipped the Function
A 9-year-old receives a functional behavior assessment after three incidents of hitting a peer in the cafeteria. The assessment consists of a records review, a 20-minute interview with the teacher, and the school's standard questionnaire, which yields a hypothesis of "attention-seeking." The behavior plan requires the student to earn points for quiet lunch and lose points for hitting, with a daily note home.
572 words, about 3 min4Supervisee Hours and the Temptation to Sign
A behavior analyst supervises two trainees. Trainee A has completed 900 of 1,500 required fieldwork hours but has been unable to attend supervision for six weeks because of a family emergency.
539 words, about 3 min5The Plan the Family Cannot Follow
A behavior analyst develops a plan for a 6-year-old with severe tantrums at home. The plan requires the mother to implement a differential reinforcement of alternative behavior procedure with a token board, deliver planned ignoring for tantrums lasting under two minutes, and conduct a 10-minute priming session before every transition, seven days a week.
548 words, about 3 min