SPCE 630 Exam 1 Questions and Answers 100% Solved |Guaranteed Success

History, maturation, testing, procedural infidelity - Threats to internal validity include: History - Events that occur during the experiment but that are not related to planned procedural changes that may influence the outcomes. Maturation - Changes in behavior due to the passage of time. Testing - Occurs when participants need to respond to the same test repeatedly during a baseline or probe condition, which influences responding. Instrumentation - Threats related to the measurement system, and are of concern because of repeated measurement by human observers who may make errors. Procedural Infidelity - Inconsistent implementation of the experimental condition. Attrition - The loss of participants during a study, which limits the generality of findings.Multiple Treatment Interference - Occurs when a participant's behavior is influenced by more than one planned intervention during the course of a study.