TABLE OF CONTENTS. 



PART II. METHODS OF EXAMINING: HISTORY, DEVELOPMENT, AND PRELIMINARY RESULTS. 



Page. 



Chapter 1. Work of the committee at Vineland, N. J ,. . . 299 



Sec. 1. Development of a group examination 299 



Sec. 2. The individual examination 306 



Chapter 2. Unofficial trial of methods 313 



Sec. 1. Group examination a 313 



Sec. 2. Group examination b 320 



Sec. 3. Group test for illiterates — Stenquist 321 



Chapter 3. Acceptance of methods by the War Department and early modifications resulting from official use. 325 



Chapter 4. Revision of group examination a 327 



Sec. 1. Differentiation between officers and enlisted men 328 



Sec. 2. Differentiation between normal and feeble-minded persons 329 



Sec. 3. Proportion of zero and perfect scores 330 



Sec. 4. Correlations with officers' ratings of men 331 



Sec. 5. Correlations with Stanford-Binet mental age 331 



Sec. 6. Correlations with age 334 



Sec. 7. Correlations with schooling and with teachers' estimates 334 



Sec. 8. Correlations with other ratings and tests 337 



Sec. 9. Correlations with total score 338 



Sec. 10. Time limits of the tests 338 



Sec. 11. Methods of scoring and weighting 339 



Sec. 12. Summary of modifications of examination a made in the construction of examination alpha 340 



Sec. 13. The alpha examination 342 



Chapter 5. Methods of segregation 347 



Sec. 1. Literacy testa 347 



Sec. 2. Linguality tests 355 



Chapter 6. Development of a substitute group test for illiterates and foreigners 363 



Sec. 1. Experiments in the camps 363 



Sec. 2. The beta trial series 368 



Sec. 3. Procedure for beta trial series 370 



Sec. 4. Revision of beta trial series 371 



Sec. 5. Choice of tests - 373 



Sec. 6. Scoring the tests 375 



Chapter 7. Data obtained through more extensive camp trial of examination beta and resulting modifications.. 379 



Sec. 1. Plan of procedure and reports from camps 379 



Sec. 2. Special study of group from Camp Custer 380 



Sec. 3. Special investigation on relatively unselected group 384 



Sec. 4. Possibility of increasing the correlation between beta and Stanford-Binet examination 387 



Sec. 5. Establishment of letter grades for beta (suggested form) 393 



Sec. 6. Summary 394 



295 



