#1
Which of the following is a key component of experimental design?
Randomization
Data Analysis
Observational Study
Literature Review
#2
Which of the following is an example of a quasi-experimental design?
Randomized Controlled Trial (RCT)
Matched Pairs Design
One-Group Pretest-Posttest Design
Factorial Design
#3
Which of the following is a threat to internal validity in experimental research?
Random assignment
Demand characteristics
Double-blind procedure
Random sampling
#4
Which type of validity assesses whether a measure accurately captures the theoretical construct it intends to measure?
Internal Validity
External Validity
Construct Validity
Statistical Validity
#5
Which of the following is a potential limitation of using a convenience sample in research?
Increased generalizability
Reduced external validity
Enhanced randomization
Elimination of confounding variables
#6
What is the purpose of a control group in an experiment?
To provide a baseline for comparison
To manipulate the independent variable
To collect qualitative data
To eliminate confounding variables
#7
Which type of validity refers to the degree to which the results can be generalized to other populations or settings?
Internal Validity
External Validity
Construct Validity
Content Validity
#8
In a repeated measures design, what is the primary advantage over a between-subjects design?
Greater control over extraneous variables
Reduced participant variability
Elimination of order effects
Enhanced external validity
#9
What is a confounding variable in experimental research?
A variable that directly influences the dependent variable
A variable that is intentionally manipulated by the researcher
An extraneous variable that is related to both the independent and dependent variables
A variable that is measured but not manipulated
#10
What is the purpose of random assignment in experimental research?
To ensure participants are representative of the population
To control for participant characteristics
To increase external validity
To eliminate confounding variables
#11
In experimental design, what does a factorial design involve?
Manipulating one variable at a time
Randomly assigning participants to groups
Manipulating multiple independent variables
Using non-probability sampling
#12
What is the purpose of a pilot study in experimental research?
To test the research hypothesis
To collect preliminary data
To analyze the final results
To communicate findings to the public
#13
What is the difference between internal and external validity in experimental research?
Internal validity refers to the generalizability of findings, 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 findings.
Both internal and external validity refer to the generalizability of findings.
Both internal and external validity refer to the accuracy of measurements.
#14
What is the purpose of a double-blind procedure in experimental research?
To ensure the participants are blind to the experimental conditions
To prevent experimenter bias and placebo effects
To increase the likelihood of Type I errors
To enhance external validity
#15
What is the purpose of a counterbalanced design in experimental research?
To ensure equal representation of groups
To control for order effects in repeated measures designs
To manipulate multiple independent variables simultaneously
To enhance external validity