PSY 510 Research Methods Midterm Questions with 100% VERIFIED Answers UPDATED!!!.

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PSY 510 Research Methods Midterm Questions with 100%
VERIFIED Answers UPDATED!!!



Internal, external, construct, and statistical conclusion -
ANSWER The four main types of validity are: ____, ____, ____,
and _____


Internal Validity - ANSWER The extent to which an investigation
rules out plausible alternative explanations of the results


Temporal Precedence - ANSWER Need to assure that A really
does come before B in the analysis (threat to internal validity)


Selection - ANSWER The presence of systematic differences
between groups before an experimental manipulation (threat to
internal validity)


History - ANSWER Any event (other than the IV) occurring in or
out of the study that can explain the results (i.e., provides for an
alternative hypothesis) (threat to internal validity)

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Maturation - ANSWER Processes (within subjects) that change
over time that are unrelated to the study's variables of interest
(e.g., growing older, wiser, stronger) (threat to internal validity)


Regression to the Mean - ANSWER Tendency for extreme scores
on a measure to revert or regress toward the distribution mean
when it is re-administered (threat to internal validity)


Attrition - ANSWER Significant or differential loss of subjects
over time (threat to internal validity)


Testing - ANSWER The effects that taking a test one time can
have on subsequent test performance (threat to internal
validity)


Instrumentation - ANSWER Changes in the measuring
instrument or measurement procedure over time (threat to
internal validity)


External Validity - ANSWER The extent to which the results of an
investigation can be generalized beyond the conditions of the
study to other populations, settings, and circumstances