#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
In a survey, what is a Likert scale commonly used for?
Measuring attitudes or opinions
ExplanationAssesses attitudes or opinions.
#7
Which of the following is a potential disadvantage of using a convenience sample in research?
Sampling bias
ExplanationIntroduces bias due to non-random selection.
#8
What is the primary purpose of random assignment in psychological research?
To minimize the impact of confounding variables
ExplanationMinimizes confounding variables' influence.
#9
In a longitudinal study, what is being measured over an extended period?
Temporal trends within individuals
ExplanationTracks trends within individuals over time.
#10
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.
#11
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.
#12
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.
#13
Which research method involves observing and recording behavior in its natural environment without intervention?
Naturalistic observation
ExplanationObserves behavior in natural setting without interference.
#14
What is the purpose of a placebo in experimental research?
To control for the placebo effect and isolate the effects of the independent variable
ExplanationControls for placebo effect and isolates independent variable effects.
#15
What does the term 'generalization' refer to in the context of research findings?
Applying study results to a broader population or context
ExplanationExtending study results to broader contexts or populations.
#16
In a correlation, if the correlation coefficient is close to zero, it indicates:
No relationship
ExplanationIndicates absence of relationship.
#17
What is the purpose of replication in psychological research?
To ensure the same results are obtained in multiple studies
ExplanationConfirms results across multiple studies.
#18
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.
#19
Which type of research design involves the manipulation of two or more independent variables?
Factorial design
ExplanationManipulates multiple independent variables.
#20
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.
#21
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.
#22
Which type of validity assesses whether a test measures what it is intended to measure?
Construct validity
ExplanationEvaluates if test measures intended constructs.
#23
Which statistical test is appropriate for examining the relationship between two categorical variables?
Chi-square test
ExplanationAnalyzes relationship between categorical variables.
#24
What is the primary purpose of a meta-analysis in psychological research?
To combine and analyze the results of multiple studies on a specific topic
ExplanationCombines and analyzes results of multiple studies.
#25
What is the purpose of statistical power in experimental research?
To detect small effects and reduce the likelihood of Type II errors
ExplanationDetects small effects, minimizes Type II errors.