1-5 Flashcards
What factors help you choose variables for your study?
research tradition (variables used in other studies)
theory (a theory you are referring too might give you ideas of variables)
availability of new techniques (fMRI, PET scans)
availability of equipment (variables are limited to the resources you have)
reliability
a measures ability to produce similar results when repeated measurements are made under identical conditions
a measures ability to produce similar results when repeated measurements are made under identical conditions
reliability
Why is it a good idea to use measures that are already established?
Reliability is known
Validity is known
What are the different types of reliability?
interrater reliability, test-retest reliability, split-half reliability and parallel forms of reliability
interrater reliability
used to establish the degree of agreement among observers when the measures involve making judgments or ratings
used to establish the degree of agreement among observers when the measures involve making judgments or ratings
interrater reliability
test-retest reliability
administering the same test twice, separated by a relatively long interval of time
administering the same test twice, separated by a relatively long interval of time
test-retest reliability
split-half reliability
one test is given at one point in time, then the test is split (looking at odds vs evens)
one test is given at one point in time, then the test is split (looking at odds vs evens)
split-half reliability
parallel forms
two different forms of the same test (one given at tie point a, the second form given at time point b)
two different forms of the same test (one given at tie point a, the second form given at time point b)
parallel forms
validity
the extent to which a measure assesses what you intend it to measure
the extent to which a measure assesses what you intend it to measure
validity
What are the types of validity?
face, content, criterion-related, construct
face validity
how well a measurement instrument “appears” to measure it was designed to measure
how well a measurement instrument “appears” to measure it was designed to measure
face validity
content validity
how adequately the content of a test samples the knowledge, skills, or behaviors that the test is intended to measure
how adequately the content of a test samples the knowledge, skills, or behaviors that the test is intended to measure
content validity
criterion-related validity
how adequately a test score can be used to infer and individual’s value on some”criterion” measures
how adequately a test score can be used to infer and individual’s value on some”criterion” measures
criterion-related validity