How well it representative is the sample?
Can it be generalized to other settings and situations?
Give this one a try later!
External Validity
Reliability of Measurement:
-Test-retest reliability: est. whether a sample gives a consistent pattern of scores at
more than one testing
-Interrater reliability: est. whether two observers give consistent ratings of a sample of
targets
-Internal reliability: est. when a sample of people answer a set of similarly worded
items in a consistent way
, -Measurement reliability: is necessary but not sufficient for measurement validity
Validity of Measurement:
-Measurement validity: can be est. with subjective judgments (face and content
validity) or with empirical data
-Face validity: the extent that it appears to experts to be a plausible measure of the
variable in question
-Content validity: a measure must capture all parts of a defined construct
-Empirically derived validity: tests include criterion validity as well as convergent and
discriminant validity
- Criterion validity: requires showing that can operationalization is correlated with
outcomes that it should correlate with, according to the understanding of the
construct
-Convergent and Discriminant validity: require showing that a measure is correlated in
a pattern--more strongly with measures of similar constructs than measures of
dissimilar constructs
Give this one a try later!
Describe the types of evidence that support the construct validity of a
measured variable
Well-trained coders and clear codebooks help ensure that observations will be
reliable and not influenced by observer expectations.
Give this one a try later!
Describe how researchers can make observations with good construct
validity
Can it be generalized to other settings and situations?
Give this one a try later!
External Validity
Reliability of Measurement:
-Test-retest reliability: est. whether a sample gives a consistent pattern of scores at
more than one testing
-Interrater reliability: est. whether two observers give consistent ratings of a sample of
targets
-Internal reliability: est. when a sample of people answer a set of similarly worded
items in a consistent way
, -Measurement reliability: is necessary but not sufficient for measurement validity
Validity of Measurement:
-Measurement validity: can be est. with subjective judgments (face and content
validity) or with empirical data
-Face validity: the extent that it appears to experts to be a plausible measure of the
variable in question
-Content validity: a measure must capture all parts of a defined construct
-Empirically derived validity: tests include criterion validity as well as convergent and
discriminant validity
- Criterion validity: requires showing that can operationalization is correlated with
outcomes that it should correlate with, according to the understanding of the
construct
-Convergent and Discriminant validity: require showing that a measure is correlated in
a pattern--more strongly with measures of similar constructs than measures of
dissimilar constructs
Give this one a try later!
Describe the types of evidence that support the construct validity of a
measured variable
Well-trained coders and clear codebooks help ensure that observations will be
reliable and not influenced by observer expectations.
Give this one a try later!
Describe how researchers can make observations with good construct
validity
