Factor Analysis

observation

FIRST STEP:

make specific ________ of many individuals which could be quantified in some manner

correlation coefficient & matrix

second step (2&)

correlation coefficient

mathematical procedure for expressing the degree of correspondence between two sets of scores

matrix

table of intercorrelations

factor analysis

third step

factor analysis

can account for a large number of variables with a smaller number of more basic dimensions

traits

factors that represent a cluster of closely related variables

factors

units of personality derived through factor analysis

factor loadings

fourth step

factor loadings

give us an indication of the purity of the various factors

factor loadings

enable us to interpret their meanings

unipolar traits

FACTOR LOADINGS:

scaled from zero to some large amount

bipolar traits

FACTOR LOADINGS:

extend from one pole to an opposite pole with zero as the midpoint

rotation

done into a specific mathematical relationship to axes on where the scores are plotted in order for mathematically derived factors to have psychological meaning

orthogonal rotation, oblique method

rotation < (2,)

orthogonal rotation

rotation favored by advocates of the Five-Factor Theory

orthogonal rotation

score of X increase

score on Y unrelated to score of X

orthogonal rotation

rotation that usually results in only a few meaningful traits

oblique method

rotation that was advocated by Cattell

oblique method

rotation that assumes some positive or negative correlation and refers to an angle of less than or more than 90°

oblique method

scores of X increase

scores of Y have tendency to increase

oblique method

rotation that ordinarily produce a larger number.