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what is the definition of validity?
the accuracy of a measure (are you testing what you claim to be testing?)
definition of external validity
how applicable the findings are to the real world
what are factors that affect the external validity?
ecological validity - changing environment
population validity - changing population
temporal validity - changing over time
definition of internal validity
how well a study is conducted (were the results caused by the IV and not other variables)
what factors can lower internal validity?
researcher effect
researcher bias
predictive validity
content validity
construct validity
face validity
concurrent validity
define researcher effect
what the researcher does that may affect the performance of p
define researcher bias
where expectations from researcher encourage certain behaviours in p