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Results
#1. A Board Certified Behavior Analyst (BCBA) supervises a newly hired teacher who has implemented a behavior reduction plan for a student exhibiting frequent off-task behaviors during independent work. After a month, the teacher enthusiastically reports a significant and consistent decrease in the student’s off-task behavior, firmly believing her newly designed plan is highly effective. However, unbeknownst to the teacher, the student’s parents began a new reward system at home two weeks into the plan, providing substantial reinforcement for completing homework and showing improved focus. This external home-based reinforcement is primarily responsible for the observed decrease in off-task behavior at school, rather than the teacher’s plan itself. In this scenario, the teacher has most likely committed what type of error?
In Applied Behavior Analysis ABA and research methodology a Type I error occurs when an interventionist or researcher incorrectly concludes that their intervention or independent variable is effective or responsible for a behavior change when in reality it is not This is often referred to as a false positive conclusion In the provided scenario the teacher believes her behavior plan caused the reduction in offtask behavior when the actual cause was the external reinforcement provided at home Therefore the teacher has committed a Type I error by falsely attributing the positive outcome to her intervention A Type II error false negative is the opposite concluding an intervention is ineffective when it actually is Behavior contrast describes a phenomenon where a change in the rate of a behavior in one setting is accompanied by an inverse change in the rate of the same behavior in another setting eg behavior decreases in one setting but increases in another this is not what occurred here as the behavior reduced due to an external variable not due to the intervention in that setting A mental construct is a general term from psychology but does not represent a specific error type in experimental design or ABA terminology as described
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