Four groups of sixth grade students took the same test in reading. The reliability coefficient will be highest for
a. students with similar intelligence test scores and a similar background in reading.
b. students with similar intelligence test scores but varying in their background in reading.
c. students with varying intelligence test scores, all of whom have a similar background in reading.
d. students with varying intelligence test scores and a varying background in reading.
Ques. 2The major disadvantage of the coefficient of stability and equivalence as a measure of reliability is
a. getting the cooperation of the subjects.
b. obtaining the two forms of the test.
c. finding a suitable criterion.
d. establishing the appropriate time interval.
e. the statistics involved in calculating the coefficient.
Ques. 3A personality test has been carefully prepared to measure a single trait. Which of the following coefficients would probably be lowest in size?
a. Kuder-Richardson c. Coefficient of stability
b. Split-half coefficient d. Coefficient of stability and equivalence
Ques. 4The greatest difficulty for one doing research on teacher effectiveness is most likely to be
a. formulating the research question.
b. obtaining subjects to participate in the study.
c. operationally defining teacher effectiveness.
d. developing statistical procedures for analyzing the data.
Ques. 5If the score reliability of a test decreases, the standard error of measurement will
a. decrease.
b. increase.
c. stay the same.
d. decrease only if the standard deviation decreases.
Ques. 6Form A of a standardized reading test is administered and then Form B of the same test is administered one month later. The coefficient of correlation between the two test scores for a group of students would be known as a
a. coefficient alpha.
b. coefficient of stability.
c. coefficient of equivalence.
d. coefficient of internal consistency.
e. coefficient of stability and equivalence.
Ques. 7The scores made by a group of students on a classroom chemistry test are correlated with their scores on a standardized chemistry test. The coefficient of correlation between the two sets of scores would be called a
a. coefficient alpha.
b. validity coefficient.
c. coefficient of equivalence.
d. coefficient of stability and equivalence.
e. coefficient of internal consistency.
Ques. 8Reliability is to random error as validity is to
a. standard error.
b. systematic error.
c. internal error.
d. error of measurement.
e. None of these are true.
Ques. 9Miss Smith compares the items on the Powers Chemistry Test to the content and objectives in her chemistry course. Miss Smith is most concerned with
a. validity evidence based on relationship to other variables.
b. validity evidence based on content.
c. validity evidence based on internal structure.
d. stability reliability.
e. equivalent forms reliability.
Ques. 10To estimate changes in test reliability that would result from changing the length of a test, one would use the
a. phi coefficient. c. Spearman-Brown.
b. Kuder-Richardson 20 d. coefficient alpha.
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