SOLVED 2026/2027 |GRADED A+
Threats to internal validity include: - ANSWER -Testing, maturation,
procedural infidelity
Match the definition. 2A. Events that occur during the experiment but that
are not related to planned procedural changes that may influence the
outcome - ANSWER -History
2B. Changes in behavior due to the passage of time - ANSWER -Maturation
2C. Occurs when participants need to respond to the same test repeatedly
during a baseline or probe condition, which influences responding - ANSWER
-Testing
Threats related to the measurement system, and are of concern because of
repeated measurement by human observers who may make errors -
ANSWER -Data instability
Inconsistent implementation of the experimental condition - ANSWER -
Procedural infidelity
, The loss of participants during a study, which limits the generality of findings
- ANSWER -Attrition
Occurs when a participant's behavior is influenced by more than one
planned intervention during the course of a study - ANSWER -Multiple
treatment interference
A type of data instability that refers to a repeated and predictable pattern in
the data series over time - ANSWER -Cyclical variability
Carryover Effects - ANSWER --Refers for an effect of being tested in one
state on participants' behavior in later situations
- May occur in a within-subject trial when the effect of a particular level of
the self-independent variable persists even after the treatment finishes
The hypothesis that states that there is no significant difference between
samples is: - 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 to the nearest whole number):
Week 1: 12, 11, 10, 22, 22