Side!
In a between-groups design, participants are assigned to _____ group(s).
What is one group
In a within-groups design, participants experience _____ condition(s).
What is every condition.
A variable that you manipulate is called the ______ variable.
What is the independent variable
The degree to which a study measures what it claims to measure is called _______. Hint: what you did actually caused the effect found.
What is internal validity.
What is the name of a study where the researcher simply observes behavior without manipulating anything?
What is an observational study.
What is the main advantage of using a between-groups design?
What is to avoid order effects
What is one major advantage of using a within-groups design?
What is no subject variability
A variable that you measure is called the ______ variable.
What is a dependent variable.
When a measure is consistent across time and testing, it is said to have high _____.
What is reliability
In research, what is it called when neither the participant nor the experimenter knows which group the participant is in?
What is a double-blind design.
What type of randomization helps ensure groups are comparable at the start of an experiment?
What is randomization
What kind of effect happens when the experience of doing one condition changes how you respond to the next one?
What is ordering effects
What is a confound?
What is a variable that varies systematically with the IV
What kind of validity concerns whether you can generalize your findings beyond your study?
What is external validity
What term describes when participants drop out of a study over time?
What is attrition or subject mortality?
What is one major disadvantage of a between-groups design?
What is subject variability
Name one strategy researchers use to minimize order effects.
What is counterbalancing
What do we call it when participants behave differently because they know they are being studied?
What are demand characteristics
Which type of validity checks if the operationalization of a variable actually represents the concept well?
What is construct validity
If a researcher changes how they interact with participants because of their expectations, it’s called ______ bias.
what is experimenter bias?
What statistical test is most often used to compare two groups in a between-groups design?
What is an independent sample
In a within-groups experiment name three threats to internal validity.
What are time, maturation, and history
The tendency of extreme scores to move closer to the mean over time is called what?
What is regression to the mean
What type of variable is related to the participant?
What is the subject variable
A researcher compares two treatments but the groups were not randomly assigned. What type of design is this?
What is a quasi experimental design?