#1
Which of the following is NOT a threat to internal validity in research?
Selection bias
History
Regression to the mean
Maturation
#2
What is the purpose of a control group in an experiment?
To receive the experimental treatment
To provide a baseline for comparison with the experimental group
To manipulate the independent variable
To ensure the experiment is double-blinded
#3
Which of the following is a potential threat to internal validity?
Maturation
Attrition
External validity
Pretest sensitization
#4
What is the purpose of using a placebo group in an experiment?
To provide a comparison for the experimental group
To manipulate the independent variable
To ensure the experiment is double-blinded
To eliminate confounding variables
#5
What is the purpose of a pilot study in experimental research?
To manipulate the independent variable
To provide a baseline for comparison with the experimental group
To ensure the reliability and feasibility of the experimental procedure
To counteract any order effects in the experimental design
#6
What does 'selection bias' refer to in experimental design?
The tendency for participants to improve over time simply due to the passage of time
The differential selection of participants for the treatment and control groups resulting in unequal groups
The tendency for participants to perform differently simply because they know they are being observed
The influence of extraneous variables that change systematically across experimental conditions
#7
Which of the following is an example of a threat to external validity?
Demand characteristics
Regression to the mean
Hawthorne effect
Experimenter bias
#8
Which of the following best describes the placebo effect?
The tendency for participants to perform differently simply because they know they are being observed
The tendency for participants to improve over time simply due to the passage of time
The influence of extraneous variables that change systematically across experimental conditions
The improvement in participants' condition due to the belief that they are receiving treatment
#9
What is the purpose of using a crossover design in research?
To counteract any order effects in the experimental design
To ensure that the researcher and participants are blind to the conditions
To reduce carryover effects and individual differences in the participants
To control for potential selection biases
#10
What is the purpose of blinding in experimental research?
To ensure that the researcher and participants are unaware of which condition they are in
To ensure that the researcher is unaware of the participants' characteristics
To ensure that the participants are unaware of the research hypothesis
To ensure that the participants are unaware of the study's purpose
#11
Which of the following is an example of a potential threat to external validity?
Demand characteristics
Maturation
Hawthorne effect
Sampling bias
#12
What is the purpose of randomization in experimental design?
To ensure that the researcher and participants are blind to the conditions
To reduce the influence of confounding variables by equally distributing them across conditions
To counteract any order effects in the experimental design
To control for individual differences in the participants
#13
Which of the following is NOT a type of experimental design?
Within-subjects design
Between-subjects design
Quasi-experimental design
Descriptive design
#14
Which of the following is NOT a threat to construct validity?
Instrumentation
Testing
Regression to the mean
Selection bias
#15
What is the purpose of using counterbalancing in experimental design?
To ensure that the researcher and participants are blind to the conditions
To counteract any order effects in the experimental design
To reduce carryover effects and individual differences in the participants
To control for potential selection biases
#16
What does the term 'history' refer to in the context of experimental design?
The differential selection of participants for the treatment and control groups resulting in unequal groups
The influence of extraneous variables that change systematically across experimental conditions
The occurrence of external events during the course of the study that may affect the dependent variable
The tendency for participants to perform differently simply because they know they are being observed
#17
Which of the following is NOT a type of sampling bias?
Random sampling bias
Convenience sampling bias
Self-selection bias
Response bias