316 Exam 2 Flashcards
(48 cards)
Quasi experimental
Intervention but missing randomization OR control
Nonexperimental
No intervention
Name 2 comparison types
Within-subjects design
Between-subjects design
Masking/blinding is used to…
Avoid bias
Timeframe
When and how often data will be collected.
Cause-and-effect relates to…
Quantitative research
Which design offers the strongest evidence of cause-and-effect?
Experimental design
The researcher assigns subject to group at random
Randomization/random assignment
Crossover
Subjects serve as their own control
More than one independent variable is experimentally manipulated
Factorial
Possible control group conditions
No intervention
Alternative intervention
Placebo
“Usual care”
Different dose
Two main categories of quasi-expirimental designs
Nonequivilant Control Group design
Within-subjects design
Those getting the intervention are compared with a nonrandomized comparison group
Nonequivalent Control Group Design
One group study before and after the intervention
Within-subjects design
Experimental
Intervention
Randomization
Control
Used to when independent variables cannot be manipulated (gender)
Nonexperimental research
Correlational design is helpful when…
Manipulation is not possible
Cohort studies use…
Prospective correlational design
Case-control design uses…
Retrospective correlational design
The purpose is to describe whether variables are related WITHOUT ascribing a cause-effect connection
Descriptive correlational
Data collected at single point in time
Cross-sectional design
Data collected over a long period of time
Longitudinal design
The extent to which it can be inferred that the independent variable caused the dependent variable
Internal validity
The generalizability
External validity
