Psychology 321 - Exam 2 questions with correct
answers
Construct Validity Correct Answer-How well does operational definition
capture desired construct? Are you measuring what you are supposed to?
Content Validity Correct Answer-Does the measure contain all the parts
that the theory (conceptual/operational definition) says it should
contain? (To measure aggression, should include both physical and
verbal acts towards others, not one or the other); Assumes you have a
good construct description; Must decide the criteria that make up the
construct
Convergent Validity Correct Answer-Are there strong correlations
between your measure and others that should be related (or are of the
same construct? (If a measure assess aggression, it should be correlated
with other measures of aggression)
Criterion Validity Correct Answer-Is your measure correlated with a
relevant outcome? (Do GREs predict success in graduate school?); Can
measure _____ validity by seeing if measurement can discriminate
between groups whose behavior is well understand (Measure saliva
cortisol in stressful situation to see if saliva cortisol indicates stress)
Discriminant Validity Correct Answer-Are there weak correlations
between your measure and those that should be unrelated (or other
measures of the same construct)? (If a measure assess aggression, should
be less strongly correlated with measures of depression); Don't need to
measure ______ validity between measure and things that are unlikely to
, be related (Aggression & Height); Important when trying to make sure
measure is not accidently capturing a similar but different construct
(Aggression & Self-Confidence)
Face Validity Correct Answer-Does it look like you are measure what
you want to measure? (Hand size has good ______ validity for size of
gloves and bad ______ validity for neatness of writing); Weakest way to
assess validity; Can improve this validity by making it more systematic
(asking a set of experts)
Correlation Coefficient Correct Answer-Relationship between variables
represented by slope direction; Strength of relationship is the spread of
the dots
R Value (of Correlation Coefficient) Correct Answer-Tells direction of
relationship (positive or negative); Tells strength (closer to +1/-1 is
strong relationship, closer to 0 is weak)
Scatterplots Correct Answer-Can plot the scores of two raters (one on
each axis); Can assess agreement between two administrations (test-
retest reliability) or two observers (interrater reliability)
Interval Correct Answer-A type of quantitative variable (some
meaningful numbers); Numbers represent equal interval between the
levels; No "true zero" (A score of zero does not mean "nothing"; Ex: IQ,
Celsius Temperature); Differences are meaningful
answers
Construct Validity Correct Answer-How well does operational definition
capture desired construct? Are you measuring what you are supposed to?
Content Validity Correct Answer-Does the measure contain all the parts
that the theory (conceptual/operational definition) says it should
contain? (To measure aggression, should include both physical and
verbal acts towards others, not one or the other); Assumes you have a
good construct description; Must decide the criteria that make up the
construct
Convergent Validity Correct Answer-Are there strong correlations
between your measure and others that should be related (or are of the
same construct? (If a measure assess aggression, it should be correlated
with other measures of aggression)
Criterion Validity Correct Answer-Is your measure correlated with a
relevant outcome? (Do GREs predict success in graduate school?); Can
measure _____ validity by seeing if measurement can discriminate
between groups whose behavior is well understand (Measure saliva
cortisol in stressful situation to see if saliva cortisol indicates stress)
Discriminant Validity Correct Answer-Are there weak correlations
between your measure and those that should be unrelated (or other
measures of the same construct)? (If a measure assess aggression, should
be less strongly correlated with measures of depression); Don't need to
measure ______ validity between measure and things that are unlikely to
, be related (Aggression & Height); Important when trying to make sure
measure is not accidently capturing a similar but different construct
(Aggression & Self-Confidence)
Face Validity Correct Answer-Does it look like you are measure what
you want to measure? (Hand size has good ______ validity for size of
gloves and bad ______ validity for neatness of writing); Weakest way to
assess validity; Can improve this validity by making it more systematic
(asking a set of experts)
Correlation Coefficient Correct Answer-Relationship between variables
represented by slope direction; Strength of relationship is the spread of
the dots
R Value (of Correlation Coefficient) Correct Answer-Tells direction of
relationship (positive or negative); Tells strength (closer to +1/-1 is
strong relationship, closer to 0 is weak)
Scatterplots Correct Answer-Can plot the scores of two raters (one on
each axis); Can assess agreement between two administrations (test-
retest reliability) or two observers (interrater reliability)
Interval Correct Answer-A type of quantitative variable (some
meaningful numbers); Numbers represent equal interval between the
levels; No "true zero" (A score of zero does not mean "nothing"; Ex: IQ,
Celsius Temperature); Differences are meaningful
