#1
Which research method involves in-depth exploration of a single case or a small group of cases?
Experimental research
Correlational research
Case study
Survey research
#2
What is the difference between a population and a sample in psychological research?
A population is a subset of a sample
A sample is a subset of a population
They are interchangeable terms
There is no difference between them
#3
Which of the following is a measure of central tendency?
Variance
Standard deviation
Median
Range
#4
In an experiment, what is the role of the independent variable?
To measure the effects of the dependent variable
To be manipulated by the researcher
To control extraneous variables
To ensure random assignment
#5
What is a hypothesis in psychological research?
A proven fact
A proposed explanation for a phenomenon
A random guess
A statistical measure
#6
What does the term 'confounding variable' refer to in an experiment?
The variable being manipulated
A variable that is held constant
An extraneous variable that may affect the results
The dependent variable
#7
What is the primary purpose of a placebo in experimental research?
To induce a specific psychological effect
To act as a control condition
To validate the research hypothesis
To manipulate the independent variable
#8
What is the purpose of random assignment in experimental research?
To ensure participants are similar in all aspects
To eliminate the need for a control group
To minimize pre-existing differences among participants
To ensure the experiment is double-blind
#9
What is the purpose of debriefing in psychological research involving human participants?
To inform participants about the study's findings
To provide counseling services
To gather additional data
To explain the study's purpose and address any concerns
#10
In a correlational study, what does a positive correlation coefficient indicate?
A strong relationship with a negative direction
A strong relationship with a positive direction
No relationship between variables
A weak relationship with a positive direction
#11
Which of the following is an example of a quasi-experimental design?
Randomized controlled trial
Pre-test and post-test design
Cross-sectional study
Factorial design
#12
Which type of research design involves studying the same group of participants over an extended period of time?
Cross-sectional design
Longitudinal design
Quasi-experimental design
Retrospective design
#13
Which ethical principle emphasizes the importance of obtaining informed consent from research participants?
Confidentiality
Deception
Voluntary participation
Autonomy
#14
What is the purpose of a control group in experimental research?
To provide a baseline for comparison
To manipulate the independent variable
To ensure external validity
To increase the variability of the results
#15
Which type of reliability assesses the consistency of a measuring instrument over time?
Test-retest reliability
Inter-rater reliability
Internal consistency reliability
Parallel-forms reliability
#16
What is the purpose of a pilot study in research?
To test the research hypotheses
To conduct the full-scale study
To identify and address potential issues with the research design
To gather preliminary data for publication
#17
In a normal distribution, what percentage of scores falls within one standard deviation from the mean?
#18
What is the purpose of an Institutional Review Board (IRB) in psychological research?
To analyze statistical data
To ensure ethical standards are met
To conduct experiments
To analyze survey results
#19
Which statistical measure is most appropriate for describing the central tendency of a skewed distribution?
Mean
Median
Mode
Standard deviation
#20
Which type of validity refers to the extent to which the results of a study can be generalized beyond the specific conditions of the study?
External validity
Internal validity
Construct validity
Content validity
#21
What is a double-blind experiment?
An experiment with two independent variables
An experiment where both the experimenter and participants are unaware of the experimental conditions
An experiment conducted in two different locations
An experiment that is repeated twice for validation
#22
What is a demand characteristic in psychological research?
A variable that influences the dependent variable
A participant's expectation of the study's purpose
A statistical measure of reliability
A type of extraneous variable
#23
What is the purpose of statistical significance in psychological research?
To indicate the practical significance of findings
To determine the likelihood that results occurred by chance
To measure effect size
To establish external validity
#24
What is the purpose of the Institutional Animal Care and Use Committee (IACUC) in research involving animals?
To analyze statistical data
To ensure ethical treatment of human participants
To review and approve research protocols involving animals
To conduct experiments on animals
#25
What is the purpose of a replication study in psychological research?
To conduct the study in a different cultural context
To repeat a study to confirm or disconfirm its findings
To combine the results of multiple studies
To analyze the statistical power of a study