SPCE 630 Midterm exam 2023 with 100% correct answers

Threats to internal validity include: - correct answer History, maturation, testing, procedural infidelity, testing, instrumentation, selection bias, multiple treatment interference, data instability, cycliccal variability, regression to the mean, adaptation, Hawthorne effect History: - correct answer Events that occur during the experiment but that are not related to the planned procedural changes that may influence the outcomes Maturation - correct answer Changes in behavior due to the passage of time. Testing - correct answer Occurs when participants need to respond to the same test repeatedly during a baseline or probe condition, which influences responding. Instrumentation - correct answer Threats related to the measurement system, and are of concern because of repeated measurement by human observers who may make errors. Procedural Infidelity - correct answer Inconsistent implementation of the experimental condition. Attrition - correct answer The loss of participants during a study, which limits the generality of findings. Multiple Treatment Interference - correct answer Occurs when a participant's behavior is influenced by more than one planned intervention during the course of a study Cyclical Variability - correct answer A type of data instability that refers to a repeated and predictable pattern in the data series over time. Sequential confounding: - correct answer -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: - correct answer 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 weeks. Calculate the mean, median, and mode of the following data set (round up to the nearest whole number): Week 1: 12, 11, 10, 22, 22 Week 2: 7, 8, 13, 21, 17 Week 3: 16,