Author Question: T-scores for student X on an achievement test battery standardized on the same population are ... (Read 145 times)

JGIBBSON · **on:** Jun 20, 2018

T-scores for student X on an achievement test battery standardized on the same population are spelling 35, math 62, social studies 50, and English grammar 52. Each test has a SEM of 2; the tests are not intercorrelated. We conclude that

A) X is strongest in spelling.
B) X is strongest in math.
C) there are no substantial differences in X's achievements in these four areas.
D) it is not possible to compare X's performance on these subtests.

Question 2

A statistic that enables an examiner to establish confidence for the true scores of examinees is the

A) Kuder-Richardson predictive index.
B) validity coefficient.
C) standard error of measurement.
D) mode.