Experimental Design in Psychological Research Quiz
Test your knowledge on experimental design in psychology with questions on variables, sampling, control groups, and more.
#1
What is the independent variable in an experiment?
The variable that is manipulated by the researcher
The variable that is measured and observed
The variable that stays constant throughout the experiment
The variable that is affected by the outcome
#2
What is the purpose of a control group in an experiment?
To provide a comparison for the experimental group
To manipulate the independent variable
To serve as a placebo group
To ensure random assignment
#3
Which of the following is an example of a random sampling technique?
Convenience sampling
Stratified sampling
Quota sampling
Simple random sampling
#4
What is a confounding variable in experimental design?
The variable that is manipulated by the researcher
An extraneous variable that is not controlled for and may affect the results
The variable that is measured and observed
The variable that stays constant throughout the experiment
#5
Which of the following is a type of non-experimental research design?
Randomized controlled trial
Quasi-experimental design
Within-subjects design
Factorial design
#6
What is a factorial design in experimental research?
A design with only one independent variable
A design with two or more independent variables
A design without a control group
A design without random assignment
#7
What is the difference between internal validity and external validity in research?
Internal validity refers to the generalizability of results, while external validity refers to the accuracy of measurements.
Internal validity refers to the accuracy of measurements, while external validity refers to the generalizability of results.
Both internal and external validity refer to the accuracy of measurements.
Both internal and external validity refer to the generalizability of results.
#8
What is a type I error in hypothesis testing?
Failing to reject a false null hypothesis
Rejecting a true null hypothesis
Failing to reject a true null hypothesis
Rejecting a false null hypothesis
#9
In a repeated measures design, what is a potential disadvantage?
Increased participant variability
Increased demand characteristics
Order effects
Increased risk of experimenter bias
#10
What is the purpose of a pilot study in experimental research?
To test the main hypotheses of the study
To gather preliminary data and identify potential issues with the study design
To select the final sample for the study
To report the results to the scientific community
#11
In experimental research, what is counterbalancing?
Balancing the budget for the study
Balancing the number of participants in each group
Balancing the order of conditions across participants
Balancing the dependent variables
#12
What is the purpose of debriefing in psychological research?
To deceive participants about the true nature of the study
To provide participants with information about the study's purpose after participation
To ensure participants are compensated adequately
To select participants for future studies
#13
What is the purpose of random assignment in experimental research?
To ensure equal representation of demographic variables in each group
To increase the external validity of the study
To eliminate confounding variables
To establish causation between variables
#14
What is a matched-pairs design in experimental research?
A design in which each participant serves as their own control
A design in which participants are matched based on certain characteristics and then randomly assigned to groups
A design without a control group
A design with a factorial structure
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