#1
Which of the following is a characteristic of a true experiment?
High level of control over variables
ExplanationTrue experiments involve manipulating variables with a high degree of control.
#2
What is the purpose of a control group in an experiment?
To provide a baseline for comparison
ExplanationControl groups establish a baseline to compare against the experimental group.
#3
Which of the following is a potential limitation of experimental research?
Limited generalizability
ExplanationExperimental studies may have limited generalizability to broader populations.
#4
What is the purpose of random assignment in an experiment?
To ensure that each participant has an equal chance of being assigned to any group
ExplanationRandom assignment minimizes bias by giving each participant an equal chance in group assignment.
#5
What is the difference between a between-subjects design and a within-subjects design?
Between-subjects design involves multiple groups of participants, with each group experiencing all levels of the independent variable, while within-subjects design involves only one group.
ExplanationBetween-subjects design uses different groups, while within-subjects design uses the same group for different conditions.
#6
What is the purpose of blinding in experimental research?
To ensure that the researcher's expectations do not influence the results
ExplanationBlinding prevents bias by keeping researchers unaware of group assignments, reducing the risk of influencing results.
#7
What is the purpose of pilot testing in experimental research?
To gather preliminary data and identify potential problems with the study's procedures
ExplanationPilot testing helps refine study procedures by identifying issues and gathering initial data.
#8
What is a confounding variable in experimental research?
An extraneous variable that correlates with the independent variable
ExplanationConfounding variables are additional factors that may impact the study, making it harder to isolate the effects of the independent variable.
#9
What is the difference between a quasi-experimental design and a true experimental design?
Quasi-experimental design lacks full control over extraneous variables, while true experimental design does.
ExplanationQuasi-experiments lack the same level of control over variables as true experiments.
#10
What is the purpose of counterbalancing in experimental research?
To control for order effects in repeated measures designs
ExplanationCounterbalancing helps control for the impact of order in repeated measures designs, ensuring each condition is experienced equally.
#11
What is a factorial design in experimental research?
A design that involves manipulating multiple independent variables
ExplanationFactorial designs involve manipulating more than one independent variable to explore their combined effects.