INDEX OF  SUBJECTS

Colour equations 3 20, 84, 120
Common elements, 52, 66
Communalities, 109, 157, 160, 328,
332, 341. 467
Components, 4, 64, 84, 211, 257
principal, 26, 255, 327, 467
resolution of, 78, 84
Composition, English, 76, 204, 271,
461
Concomitant variation, 3, 108
Connotation, no, 160, 200
Correlation., 4, 6, 52, 68, 258, 289,
294
intra-class, 275-7, 34^
of persons, x, 7,109,124,169-209,
289-94, 390-3, 420
ratio, 274-8, 346
Cosine law, 60, 88, 91,164
Covariance, 6,149, 234, 258, 280-8
Cyclic overlap, 143, 297, 461
Degrees of freedom, 274
Denotation, no, 160, 200
Diagonal entries, 152, 328, 331, 341,
^392, 448,450, 460,466-7,482
Direction cosines, 109,153, 321
Distensive magnitude, see Measure-
ment
Economics, factor-analysis in, ix, 133,
248
Economy, postulate of,  see Parsi-
mony, law of
ratio, 347
Educational guidance, v, 15, 54-9,
227-30, H3
Eduction, 75-9,65
Emotions* 7, 75, 83,176, 192,388
Empirical method, 61
Abilities, 3, 6, 51, 67, 105, 203, 236
aesthetic, 76, 178
arithmetical, 5, 50,, 76, 203, 3x1
educational, 5, 29, 55, 126, 230,
3x1-17, 33^,460-76
mechanical, 76, 142, 315
motor, 60, 203, 315
primary, 6, 84, an, 237, 251, 311
verbal, 6, iR, 55, 74-6, 142, 203,
. _t3^1T)4°7
Addition, postulates of, 130-2
Esthetic appreciation, 76, 121, 178,
192-6
Agreement, method of, 31, 33
Analogy, 28-39
Analysis of variance, 19, 40, 66, 180,
235,248,271^0,365,433
Analytic method, 6r, 121
Asthenia type, see Types
Atomic uniformity, principle of, 65,
222
Attributes, 46, 65, 99, no, 115, 250
Backwardness, 15, 19, 54, 58, 96, 243
Bi«£actor method, 268, 298
Binct tests, 55-ty 172, 175, 217
Bipolar factor, stt Factors
Canonical expansion, 165, 265, 323,
326, 491:
Causation, 4, 38,65-71,86,2x8, 228,
231
axiom of, 31^ 69, 220, 228
Centroid method, 72, 225, 326, 385,
395;    s/t   also   Summation
method, simple
Chance* st# Factors, chance
Classification, 19, 77, 202, 250, 309
Cluster analysis, %6S**g        t
505