Research Methods and Causal Inference Quiz Test your knowledge of experimental research, causal inference, and methodology with these quiz questions. Explore concepts like randomization, control groups, and validity threats.
#1
Which of the following is NOT a characteristic of experimental research?Random assignment
Manipulation of variables
Naturalistic observation
Control over variables
#2
In a randomized controlled trial (RCT), participants are assigned to groups:Based on their age
Randomly
By the researcher's preference
By their preference
#3
What is the primary purpose of a pilot study in research?To collect preliminary data
To confirm the hypothesis
To recruit participants
To conduct statistical analysis
#4
What is the purpose of a research hypothesis?To provide a tentative explanation for observed phenomena
To summarize research findings
To describe the research design
To report statistical results
#5
What is a placebo?A fake treatment given to participants in the control group
A powerful drug used in clinical trials
A confounding variable
A method of randomization
#6
Which of the following is NOT a potential threat to internal validity in an experimental study?Maturation
Regression to the mean
Selection bias
Hawthorne effect
#7
What is the purpose of a control group in experimental research?To provide a baseline for comparison
To manipulate variables
To receive the experimental treatment
To introduce confounding variables
#8
What is the purpose of randomization in experimental research?To ensure that participants are similar across groups
To increase the likelihood of finding significant results
To control for potential confounding variables
To assign participants to groups without bias
#9
Which of the following is an advantage of using qualitative research methods?Ease of generalization
Objective data collection
In-depth understanding of complex phenomena
Statistical analysis
#10
Which of the following is NOT a component of the IRB (Institutional Review Board) review process?Risk assessment
Participant recruitment
Informed consent procedures
Confidentiality protections
#11
Which of the following statistical methods is commonly used to establish causality in observational studies?Regression analysis
Factorial design
ANOVA
Chi-square test
#12
What is the purpose of using a placebo in a double-blind experiment?To reduce demand characteristics
To deceive participants
To control for the placebo effect
To increase the effect size
#13
Which of the following is NOT a criterion for establishing causality according to Bradford Hill's criteria?Temporal relationship
Consistency
Randomization
Strength of association
#14
What is a Type I error in hypothesis testing?Rejecting a true null hypothesis
Failing to reject a false null hypothesis
Accepting the null hypothesis when it is false
Accepting the null hypothesis when it is true
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