Chapter 3: Research Methods Flashcards
(42 cards)
Independent Variable
the variable the researcher manipulates
Dependent Variable
the variable that is being measured
Random Assignment
a 50/50 chance being in either condition in an experiment
Operational Definitions
clearly defining what the researcher is measuring
Between-Subjects Design
-you can only have one result of the other
-different groups assigned to an experiment
-exposed to one condition or outcome
Within-Subjects Design
-having control over the outcome of the experiment
-exposed to both conditions or outcomes
-each participant has their own control
rules of thumb that help streamline our thinking
Heuristics
the tendency to presume that someone/ something belongs to a particular group if resembling a typical member ex. Thinking that a engineer is a lawyer just because the look like one
Representative Heuristics
making a judgment based on what we can remember, rather than complete data ex. Watching titanic right before going on a boat, this creates fear within us
Availability Heuristics
Keys to a Successful Experimental Design
random selection, internal validity, external validity, reliability, awareness of leniency effect, problems with self-report measures
Random Selection
incorporating people from across the world
Internal Validity
helps us find cause and effect
-was the study done right?
External Validity
how well does it generalize/relate to the real world?
Reliability
consistency of the test
-do the results stay the same or keep changing?
Awareness of Leniency Effect
tendency of being overally generous
Problems of self-report measures?
tendency to stick around the middle during surveys
What do Descriptive Statistics do
Describe the data
What do Inferential Statistics talk about
the differences between groups/samples
Mode
the number that appears the most
Median
the number in the middle when u line all the numbers up
Mean
the average between all the numbers
Range
lowest and highest number
SD
tells us how far each point is from the median
Improvement resulting from the expectation of seeing improvement
The Placebo Effect