#1
Which of the following is an example of a dependent variable?
Age
Height
Test scores
Amount of studying
#2
Which of the following is NOT a measure of central tendency?
#3
Which of the following is NOT a type of non-experimental research design?
Correlational research
Case study
Survey research
Experimental research
#4
What is the purpose of a hypothesis in psychological research?
To manipulate the independent variable
To provide a tentative explanation for observed phenomena
To control for confounding variables
To select participants randomly
#5
Which of the following is a measure of variability in a set of data?
Mean
Standard deviation
Median
Mode
#6
What is the purpose of a control group in an experiment?
To provide a baseline for comparison
To receive the experimental treatment
To ensure random assignment
To eliminate bias
#7
Which statistical measure is most appropriate for describing the central tendency of a skewed distribution?
Mean
Median
Mode
Standard deviation
#8
In a research study, what does 'random sampling' refer to?
Selecting participants randomly from the population
Ensuring that each participant has an equal chance of being assigned to any group
Randomly assigning participants to different conditions
Controlling for extraneous variables
#9
What is the purpose of a placebo in a psychological experiment?
To ensure participants are not aware of the experiment's purpose
To act as a comparison for the experimental treatment
To induce a psychological effect through suggestion
To manipulate the dependent variable
#10
Which research design involves observing and recording behavior in its natural environment without intervention?
Experimental design
Survey design
Correlational design
Naturalistic observation
#11
Which research design involves observing and recording behavior in its natural environment without interference?
Case study
Experimental study
Correlational study
Naturalistic observation
#12
What is the primary purpose of random assignment in an experiment?
To ensure equal representation of participants in each condition
To manipulate the independent variable
To control for confounding variables
To select participants randomly
#13
Which statistical test is appropriate for determining if there is a significant difference between the means of two independent groups?
Independent t-test
Paired t-test
Chi-square test
ANOVA
#14
What is the purpose of a double-blind procedure in psychological research?
To ensure participants are unaware of the experiment's purpose
To prevent bias by keeping both participants and researchers unaware of group assignments
To manipulate the independent variable
To control for confounding variables
#15
Which of the following is NOT an ethical principle in psychological research according to the APA?
Informed consent
Deception
Confidentiality
Protection from harm