+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
Item difficulty (p)
note: p = 0 to 1.0 (larger number – easier item)
|
|
Item discrimination index (D)
note: ranges from -1.0 to 1.0; D>.35 usually best
|
|
True score variability is called ...?
|
Reliability
|
|
What type of reliability yeilds a coefficient of stability?
|
Test-retest
|
|
What type of reliability yeilds a coefficient of equivalence?
|
Alternative (equivalent, parallel) forms
|
|
The average reliability that would be obtained from all possible splits of the test is called ... ?
|
Cronbach's coefficient alpha
|
|
What is used for internal consistency reliability when items are dichotomous (right/wrong)?
|
Kuder-Richardson Formula 20 (KR-20)
|
|
This is an index of the amount of error that can be expected in obtained scores due to the unreliability of a test and is used to create confidence intervals.
|
Standard Error of Measurment
|
|
+- 1 SEM --> confidence interval of ______
+- 2 SEM --> confidence interval of ______
+- 3 SEM --> confidence interval of ______
|
68%
95%
99%
|
|
A multitrait-multimethod matrix is used to assess ______________ validity
|
Convergent/ discriminant (type of construct validity)
|
|
Factorial validity is a type of ___________ validity.
|
Construct
|
|
____________ rotations are used with unrelated factors, while __________ rotations are used with related factors.
|
Orthogonal
oblique
|
|
Reliability = ____________ (shared variance; the part explained by FA) + ____________ (part not explained by FA)
|
Communality
specificity
|
|
Varimax, quartimax, equimax are all forms of _____________ rotation, while quartimin, oblimin, oblimax are all forms of _____________ rotation.
|
Orthogonal
oblique
|
|
When creating a regression equation in criterion related validity study, the ________ is used to construct confidence interval.
|
Standard Error of the Estimate (SEE)
|
