SPCE 630 Midterm Questions and answers latest update

SPCE 630 Midterm Questions and answers latest update Threats to internal validity include: History, maturation, testing, procedural infidelity, testing, instrumentation, selection bias, multiple treatment interference, data instability, cycliccal variability, regression to the mean, adaptation, Hawthorne effect History: Events that occur during the experiment but that are not related to the 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 Cyclical Variability A type of data instability that refers to a repeated and predictable pattern in the data series over time. Sequential confounding: -May influence the participants' responding based on the order in which the experimental conditions are introduced to participants. -Can be controlled by counterbalancing. The hypothesis that states that there is no significant difference between samples is: The null hypothesis Amanda is an RBT at an ABA clinic. She is working with her client, Jerrell, to decrease aggressive behaviors (i.e., biting others). She has collected data for the frequency of Jerrell's bites for three