INDEX OF SUBJECTS

Operators, 100, 227 ; see also Selec-
tive operators
Overlapping factors, see Factors

Parsimony, law of, 14, 27, 106, 108,

329

Percentiles, 123
Perseveration, 6, 192, 412
Personalistics, 182
Phenotypes, 9, 114, 377, 385
Physical measurements, 112-14, 174

types, see Types
Point, definition of, 85
Population, see Sampling ; Universe
Postulates :

a priori, 25, 39, 42-4

monotonic, 131

of addition, 130-2

of atomic uniformity, 65, 223

of causation, 4, 69

of economy, 14, 27, 106, 108, 329

of independence, 52, 83

of limited independent variety,
224

of measurement, 119, 130-1

of parsimony, see of economy

of simplicity, 23-5, 240
Predicables, 110-14, 250
Prediction, 20-64, 228~3l
Primary abilities, see Abilities
Primary colours, 84, 122
Probability, 34, 47, 220, 229, 240
Product theorem, 47,49-50,150,447
Degressive delimitation, 64, 106
Property, see Predicables
Proportionality criterion, 54, 148
Proprium, see Predicables
Psychoanalysis, 229, 244
Psychodynamics, 91
Psychogram, 63,78,91, 371,426,443
Psychophysical methods, 135
P-technique, see Correlations be-
tween persons *
Pyknic type, see Types

Q-technique, 169-206, 386, 394, 418
Quantum theory, 100, 150, 162, 225,
467

Random errors, see Factors, chance
Random sampling, see Sampling,

random

Randomization, 40, 278-9
Rank, definition of, 146

of correlation matrix, 107, 263,

454> 459

of measurement matrix, 263
Reciprocity principle, 175, 282,

291-4, 406, 442, 487-93
Reflection of signs, 76, 458,

465

Regression, 48, 68, 78, 262, 329
Relations, 33, 89, Il8, 227, 234-9
Representative sampling, see Samp-
ling

Reversibility, principle of, 205
Rotation of axes, 81, 236, 259, 303-

*7> 334. 3^1, 4**S
R-technique, 177, 185-8

Sampling, 6, 145
random, 6, 36, 44, lot
representative, 36, 145, 247
simple, see random
theory, 52, 65, 159-61, 209

Saturation coefficients, see Factor-
saturations

Scales of measurement, 126-7
standard, 128, 183

Selection, 66

Selective operators, loo, 264*5, 318,

3*3> 49^4
Sex differences, 8, 142

linkage, 8, 266
Significance, 6, 187, 338-40
Simple structure, 23, 27, 240, 297,

302, 335

summation, see Summation
Single-factor theorem, 146
Single-factor theory, 54, 143-5, 449
Singular factors, stt Factors
Specific abilities, see Abilities

factors, see Factors
definition of, 102
Spectral analysis, 100, 165, 267
Spherical coordinates, 81

trigonometry, 81, 88