#1
Which of the following is a common measure of central tendency?
Mean
ExplanationCommon measure of central value.
#2
What is the purpose of a control group in an experiment?
To provide a baseline for comparison with the experimental group
ExplanationEstablishes baseline for comparison.
#3
In a correlation coefficient, a value close to +1 indicates:
A strong positive relationship
ExplanationSignifies strong positive correlation.
#4
Which ethical principle emphasizes the need to maximize benefits and minimize harm to participants?
Beneficence
ExplanationFocuses on participant benefit and harm reduction.
#5
What is the purpose of a hypothesis in the scientific method?
To provide a tentative explanation for observed phenomena
ExplanationOffers tentative explanation for observed phenomena.
#6
What is the primary purpose of random assignment in psychological research?
To minimize the impact of confounding variables
ExplanationMinimizes confounding variables' influence.
#7
In a longitudinal study, what is being measured over an extended period?
Temporal trends within individuals
ExplanationTracks trends within individuals over time.
#8
What is the purpose of debriefing in psychological research involving human participants?
To explain the study's purpose, procedures, and address any concerns
ExplanationExplains study, addresses participant concerns.
#9
What is the purpose of obtaining informed consent in psychological research?
To obtain permission from participants before the study begins
ExplanationSecures participant permission prior to study.
#10
What is the purpose of a pilot study in psychological research?
To identify and address potential issues with study procedures
ExplanationIdentifies and addresses study procedure issues.
#11
What does the term 'double-blind' mean in the context of experimental research?
Both the researcher and participants are unaware of the experimental conditions
ExplanationBoth researcher and participants unaware of conditions.
#12
Which type of research design involves the manipulation of two or more independent variables?
Factorial design
ExplanationManipulates multiple independent variables.
#13
Which statistical test is appropriate for comparing means of three or more groups in an experiment?
Analysis of variance (ANOVA)
ExplanationCompares means of multiple groups.
#14
What is the purpose of a case study in psychological research?
To provide an in-depth analysis of a specific individual or situation
ExplanationOffers detailed analysis of individual or situation.
#15
Which type of validity assesses whether a test measures what it is intended to measure?
Construct validity
ExplanationEvaluates if test measures intended constructs.