EXPEPSY lesson 3 Flashcards
techniques that don’t manipulate antecedent conditions
NONEXPERIMENTAL STUDIES
events, circumstances, or actions that occur immediately before a behavior or event
Antecedent conditions
conditions that are needed prior to an experiment
Antecedent conditions
needed prior to the condition; alternatives; exp: randomization
Antecedent conditions
do not create levels of an independent variable nor randomly assign subjects to these levels
NONEXPERIMENTAL APPROACHES
used when experiments are not ethical or possible, or we want to test hypotheses in realistic conditions
NONEXPERIMENTAL APPROACHES
the degree to which a researcher can establish a causal relationship between the independent and dependent variables.
INTERNAL VALIDITY
_ has high internal validity if it can demonstrate that only the antecedent conditions are responsible for group differences in behavior
Experiment
only the required conditions
Antecedent conditions
_ experiment allows us to draw cause-and-effect conclusions
Internally Valid Experiment
often achieve higher internal validity than nonexperimental studies
Experiments
often higher in internal validity because they control extraneous variables
Laboratory experiments
Researchers create levels of the IV and use procedures like matching and random assignment to conditions
INTERNAL VALIDITY
Degree to which research findings can be generalized to other settings and individuals.
EXTERNAL VALIDITY
achieve higher external validity than laboratory experiments
Nonexperimental studies
More frequently conducted in real-world settings with a more diverse sample of participants than experiments
Nonexperimental studies
setting is controlled = internal validity is established
EXPERIMENT
Can be good at showing one thing causes another
INTERNAL VALIDITY
Might not represent what happens in the real world
EXTERNAL VALIDITY
increasing the internal validity
Randomization
research methods where the researchers do not intentionally change or manipulate the situations, events, or conditions being studied
NONEXPERIMENTAL STUDIES
Correlation and Description
Observation
No manipulation
Natural settings
NONEXPERIMENTAL STUDIES
degree of _ concerns the assignment of subjects to antecedent conditions created for the experiment
degree manipulation of antecedent conditions
How much do researchers intentionally change, alter or modify the things they’re studying
EX. tracking children’s regular diet to placing children on a strict diet
Degree of Manipulation of Antecedent Conditions
are usually high in the degree of manipulation
Experiments
usually low in the degree of manipulation
Nonexperiments
how much you limit a subject’s responses on the DV
Degree of imposition of units
How much control do researchers have over the participants or subjects involved (direct, influence, dictate) in the study.
Ex. household income, time spent on social media, number of siblings
Degree of imposition of units