Psych 359 exam 2 review

When many test examinees score very high on the test, a _____ _______ is reached/

• congruent effect

• floor effect

• ceiling effect

• discongruent effect

Which method of scaling uses questions that discriminate between a criterion group and norm group?

• Guttman scales

• Likert scales

• Thurstone scales

• Empirical keying

The __________ is a method of item analysis that tells what proportion of people get the item correct.

• Item difficulty index

• item discrimination index

• item reliability index

• item validity index

Your "observed" test score contains which 2 components?

• true score + true score

• error score + observed score

• true score + error

• observed score + error

Generally, test reliabillity increases as ____________ increases.

• test difficulty

• test length

• number of multiple choice distractors

• all of the above

Reliability coefficients fall between ___ and ___

• -1 and +1

• -1 and 0

• 0 and 1

• 0 and 2

What is used to compensate for the underestimated value in the split-half reliability?

• Spearman-Brown

• Pearson correlation

• Coefficient alpha

• Dichotomous alpha

What does internal consistency reliability measure?

• test-retest factors

• split-half relibility

• unidimensionality of the items

• none of the above

The expected error in a test score due to test unreliability is known as:

• Standard error of estimate

• coefficient alpha

• Standard error of congruence

• Standard error of measurement

An unreliable test can be valid. True or False?

• True

• False