Biology Forums - Study Force

The score validity of a test is related highly to the
 
  a. test format.
  c. number of items.
  b. purpose of the test.
  d. availability of equivalent forms.

Ques. 2

Which of the following sources of error variance is not accounted for in a coefficient of stability and equivalence?
 
  a. Content sampling
  b. Procedures in administering or scoring the test
  c. Ability differences among the subjects
  d. Time between the equivalent forms
  e. Changes in the examinees' emotional state

Ques. 3

Which of the following score reliability procedures requires that the items all have the same level of difficulty?
 
  a. Kuder-Richardson 20
  c. Split-half
  b. Kuder-Richardson 21
  d. Cronbach alpha

Ques. 4

A researcher has a highly speeded test. The recommended way to estimate the score reliability of this test is to use
 
  a. Cronbach alpha. c.
  test-retest or equivalent forms.
  b. Kuder-Richardson 21.
  d. the split-half procedure.

Ques. 5

A test has a standard deviation of 4 and a reliability of .91. What is the standard error of measurement?
 
  a. 1.20
  c. 3.64
  b. 1.82
  d. 3.82

Ques. 6

Cronbach's coefficient alpha is preferred to the Kuder-Richardson 21 when
 
  a. the items are all of the same level of difficulty.
  b. the items are scored right or wrong (dichotomously).
  c. the responses may receive a varying number of points.
  d. a and c

Ques. 7

A researcher is constructing a test for use in a study. In order to insure the highest reliability, the researcher should
 
  a. increase the number of items on the test.
  b. plan to increase item homogeneity.
  c. try out the test on a heterogeneous group.
  d. All of these are true.

Answer to #1

B

Answer to #2

C

Answer to #3

B

Answer to #4

C

Answer to #5

A

Answer to #6

C

Answer to #7

D

Thank you