A translated version of the Comrey Personality
Scales (CPS) using a two-choice item format was
administered to 159 male applicants for a motor vehicle
operator’s license in Israel. Total scores were
computed for the 40 homogeneous item subgroups
that define the eight personality factors in the taxonomy
underlying the CPS. Factor analysis of the
intercorrelations among these 40 subvariables resulted
in substantial replication of factors found in
a previous study employing a seven-choice item format.
On the average, higher intercorrelations
among subvariables measuring the same factor and
higher factor loadings were obtained for the seven-choice
item format results. These findings suggest a
superiority for the seven-choice over the two-choice
item format for personality inventories.
Comrey, Andrew L & Montag, I. (1982). Comparison of factor analytic results with two-choice and seven-choice personality item formats. Applied Psychological Measurement, 6, 285-289. doi:10.1177/014662168200600304
Comrey, Andrew L.; Montag, I..
Comparison of factor analytic results with two-choice and seven-choice personality item formats.
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