SPCE 630 Exam Prep Review 2026/2027 –
Realistic Practice Test & Answer Key
Threats to internal validity include: - correct answer-History, maturation, testing,
procedural infidelity
Events that occur during the experiment but that are not related to planned
procedural changes that may influence the outcomes. - correct answer-History
Changes in behavior due to the passage of time. - correct answer-Maturation
Occurs when participants need to respond to the same test repeatedly during a
baseline or probe condition, which influences responding. - correct answer-
Testing
Threats related to the measurement system, and are of concern because of
repeated measurement by human observers who may make errors. - correct
answer-Instrumentation
,Inconsistent implementation of the experimental condition. - correct answer-
Procedural Infidelity
The loss of participants during a study, which limits the generality of findings. -
correct answer-Attrition
Occurs when a participant's behavior is influenced by more than one planned
intervention during the course of a study. - correct answer-Multiple Treatment
Intreference
A type of data instability that refers to a repeated and predictable pattern in the
data series over time. - correct answer-Cyclical Variability
Carryover effects: - correct answer-NOT: Is best described as the effect of a
procedure used in one condition on responding in an adjacent condition.
The hypothesis that assumes that sample observations are influenced by some
non-random cause is: - correct answer-The alternative 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: 22, 31, 20, 32, 32
Week 2: 7, 8, 13, 31, 17
Week 3: 16, 5, 9, 12, 15 - correct answer-Mean = 18, Median =16, Mode = 31, 32
, Dr. Jones wanted to know if the use of the Good Behavior Game decreased rates
of disruptive behaviors in an elementary school. Dr. Jones collected data
throughout the duration of the school year across two elementary schools. In
school A, all k-6 classrooms used the Good Behavior Game. In School B, no
classrooms used the Good Behavior Game. At the end of the school year, Dr.
Jones shouted, "Eureka! The Good Behavior Game works," when in fact it had no
impact on student disruptive behavior. This is an example of: - correct answer-A
Type I Error
The primary purpose of the literature review is to: - correct answer-All of the
above
Which of the following is true about single-case research design? - correct
answer-The participant serves as his or her own control.
These graphs demonstrate which of the following: - correct answer-Inter-subject
replication with an A/B/A/B design
These data show which of the following: - correct answer-A change in variability
Which of the following is a limitation of using statistical significance to
differentiate between meaningful and trivial change? - correct answer-NOT: Large
enough sample sizes will always show a significant difference between
populations.
Which of the following is a limitation of group design? - correct answer-All of the
above are potential limitations of group design.
Realistic Practice Test & Answer Key
Threats to internal validity include: - correct answer-History, maturation, testing,
procedural infidelity
Events that occur during the experiment but that are not related to planned
procedural changes that may influence the outcomes. - correct answer-History
Changes in behavior due to the passage of time. - correct answer-Maturation
Occurs when participants need to respond to the same test repeatedly during a
baseline or probe condition, which influences responding. - correct answer-
Testing
Threats related to the measurement system, and are of concern because of
repeated measurement by human observers who may make errors. - correct
answer-Instrumentation
,Inconsistent implementation of the experimental condition. - correct answer-
Procedural Infidelity
The loss of participants during a study, which limits the generality of findings. -
correct answer-Attrition
Occurs when a participant's behavior is influenced by more than one planned
intervention during the course of a study. - correct answer-Multiple Treatment
Intreference
A type of data instability that refers to a repeated and predictable pattern in the
data series over time. - correct answer-Cyclical Variability
Carryover effects: - correct answer-NOT: Is best described as the effect of a
procedure used in one condition on responding in an adjacent condition.
The hypothesis that assumes that sample observations are influenced by some
non-random cause is: - correct answer-The alternative 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: 22, 31, 20, 32, 32
Week 2: 7, 8, 13, 31, 17
Week 3: 16, 5, 9, 12, 15 - correct answer-Mean = 18, Median =16, Mode = 31, 32
, Dr. Jones wanted to know if the use of the Good Behavior Game decreased rates
of disruptive behaviors in an elementary school. Dr. Jones collected data
throughout the duration of the school year across two elementary schools. In
school A, all k-6 classrooms used the Good Behavior Game. In School B, no
classrooms used the Good Behavior Game. At the end of the school year, Dr.
Jones shouted, "Eureka! The Good Behavior Game works," when in fact it had no
impact on student disruptive behavior. This is an example of: - correct answer-A
Type I Error
The primary purpose of the literature review is to: - correct answer-All of the
above
Which of the following is true about single-case research design? - correct
answer-The participant serves as his or her own control.
These graphs demonstrate which of the following: - correct answer-Inter-subject
replication with an A/B/A/B design
These data show which of the following: - correct answer-A change in variability
Which of the following is a limitation of using statistical significance to
differentiate between meaningful and trivial change? - correct answer-NOT: Large
enough sample sizes will always show a significant difference between
populations.
Which of the following is a limitation of group design? - correct answer-All of the
above are potential limitations of group design.
