EMPLOYMENT PSYCHOLOGY
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PSYCHOLOGICAL TESTS... ir st dea,
What is meant by a psychological test. Classification of tests according
 to purpose, ability measured, apparatus or material used,
technique, restrictions on response. Verbal tests.
VIII
PsycHoLocIcAL Tests (Concluded) o................. 10+
Performance tests. Technique of test construction. Order of
items. Length of test. Time limits. Directions and fore-exercise.
Directions for scoring the test. Omnibus tests. Alternative
forms. Arrangement in series.
RATING SCALES es ee ee Ee —
Methods of estimating abilities: Order of merit; grouping; the
Scott form of man-to-man comparison scale; the scale of alternatives
 or two steps; per cent scales; multiple-step scales; linear
scales; descriptive scales; graphic rating scales.
bi
RATING Scares (Concluded) ........................ I,2
Statistical and non-statistical bases for the comparison of rating
methods. How to make a graphic rating scale. Obtaining the
ratings. Statistical treatment of ratings.
QUESTIONNAIRES: THE PERSONAL HisToRY RECORD AND
THE INTEREST ANALYSIS |, ces cre riots 143
Definition of a questionnaire. Uses of a questionnaire in an investigation
 of this sort. Characteristics of a good questionnaire.
Obtaining the data.
XII
TEST ADMINISTRATION + vonsnensneesss annum I55
Preliminary details in test administration. The examiner's attitude.
 The testing room. Procedure in testing.
XIII
VALIDATION OF THE MEASURING INSTRUMENTS . ......... It,
Tabulation. Meaning of reliability. Measures of reliability. Correction
 for attenuation. Meaning of validity. Measures of validity.
 Group comparisons. Differentiation of groups by test
scores. Differentiation of groups by questionnaire items,

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