#1
Which of the following is NOT a measure of central tendency?
Mean
Median
Standard deviation
Mode
#2
What is the purpose of a control group in an experiment?
To provide a baseline for comparison with the experimental group
To manipulate the independent variable
To ensure that participants are unaware of the experimental conditions
To analyze the data using inferential statistics
#3
What is the purpose of debriefing in psychological research?
To explain the purpose of the study to participants after their involvement
To manipulate the dependent variable
To ensure that participants are representative of the population
To ensure the reliability of the experimental results
#4
What is the purpose of informed consent in psychological research?
To ensure that participants are aware of the risks and benefits of participation
To manipulate the independent variable
To guarantee that participants complete all study procedures
To ensure that participants are not harmed during the study
#5
What is the purpose of a placebo in experimental research?
To manipulate the dependent variable
To provide a baseline for comparison
To deceive participants about the experimental condition
To control for the placebo effect
#6
What is the purpose of random assignment in experimental research?
To ensure that each participant has an equal chance of being assigned to any experimental group
To guarantee that the researcher's bias doesn't influence the results
To eliminate confounding variables
To control for demand characteristics
#7
Which of the following is a type of non-experimental research design?
Randomized controlled trial
Correlational study
Factorial design
Quasi-experiment
#8
What is the purpose of inferential statistics?
To describe and summarize data
To make inferences or predictions about a population based on sample data
To determine cause-and-effect relationships
To visualize data through graphs and charts
#9
What is the term for the phenomenon where participants in a study alter their behavior because they know they are being observed?
Demand characteristics
Placebo effect
Hawthorne effect
Confirmation bias
#10
In a factorial design, how many independent variables are manipulated?
One
Two or more
None
It varies depending on the research question
#11
Which of the following is a characteristic of a true experiment?
Random assignment of participants to groups
Use of pre-existing groups for comparison
Absence of manipulation of variables
Observational data collection
#12
Which statistical test is appropriate for comparing means of two independent groups?
Independent samples t-test
Chi-square test
One-way ANOVA
Pearson correlation
#13
What is the primary advantage of using a within-subjects design?
Reduced susceptibility to demand characteristics
Greater control over extraneous variables
Increased statistical power
Participants serve as their own controls
#14
What is the main drawback of using convenience sampling in research?
Difficulty in generalizing results to the larger population
Limited control over extraneous variables
High cost and time consumption
Potential for experimenter bias
#15
Which type of research design involves observing and recording behavior in its natural environment?
Experimental design
Correlational design
Observational design
Quasi-experimental design
#16
What is the purpose of a pilot study?
To test the feasibility and effectiveness of the research procedures
To determine the statistical power of the study
To select the appropriate statistical tests for data analysis
To recruit a large sample of participants
#17
Which type of validity refers to the extent to which findings can be generalized to other populations, settings, and times?
Internal validity
External validity
Construct validity
Content validity
#18
Which of the following is NOT a type of qualitative research method?
Case study
Survey
Ethnography
Grounded theory
#19
What does a positive correlation coefficient indicate?
A strong relationship between variables
A negative relationship between variables
No relationship between variables
An inverse relationship between variables
#20
Which of the following is a measure of effect size?
p-value
Standard deviation
Cohen's d
Chi-square
#21
Which of the following is a measure of variability?
Standard deviation
Mean
Median
Mode
#22
What does a p-value indicate in hypothesis testing?
The strength of the relationship between variables
The probability of obtaining the observed results by chance alone
The effect size of the experimental manipulation
The confidence interval for the mean difference
#23
Which type of reliability refers to the consistency of results over time?
Inter-rater reliability
Test-retest reliability
Internal consistency reliability
Parallel forms reliability
#24
What is the primary purpose of conducting a literature review in psychological research?
To identify gaps in existing knowledge
To manipulate the independent variable
To analyze the data collected from participants
To ensure the reliability of the experimental results
#25
What is the purpose of a factorial design in research?
To manipulate multiple independent variables
To compare two or more groups on a single variable
To ensure random assignment of participants
To control for demand characteristics