BY RUDOLF PINTNER FBOFZSfiOR OF PSTCHOLOGT, OHIO STATE tJOTPEBSITY D. APPLETON AND COMPANY NEW YORK LONDON 1018 COPYRIGHT, 1918, BT D. APPLETON AND COMPANY Printed in the United States of America PREFACE I HAVE attempted to develop a method of tests for group purposes, in order to measure roughly the intelligence of large groups of children. The work began owing to the practical problem of finding the number of feeble-minded in a school or institution. To avoid needless testing of perfectly normal children some rough preliminary tests were made. The tests I turned to were those which had been fairly well standardized at the time, and that is the explanation of the tests I am presenting here. No claim is made that they are the best tests for such purposes. Doubtless better groups of tests will be devised in the future. The application of the mental survey to schools and the evaluation of school achievement in terms of mentality, is, I believe, the most important aspect of the present study. The book is divided into two parts. The first describes the method of standardization and gives some results. The second part is a guide for the use of the tests and has been written as clearly and simply as possible, so that the worker may follow, step by step, the procedure in giving, scoring and evaluating the tests. The material required for the survey tests is the standard material supplied by the C. H. Stoelting Company of Chi cago. I have given illustrations of the test blanks used, with measurements of the size of the test sheets, so that those who may wish to print their own test blanks may do so. In the collection of the data for this book I am indebted to many people for their help and cooperation. I wish to VI PREFACE thank the principals - and teachers of the schools in which the surveys were made, for their courtesy and their willing ness to make out the lists of pupils according to their esti mates of intelligence. I wish also to thank my advanced students for their assistance in conducting the surveys. I wish further to thank Mr. C. O. Edington for the data obtained from the rural schools, and Mr. D. Gf. Paterson for allowing me to add to my norms the results obtained by him from about three hundred children. To Miss Lucille Boylan I am indebted for the tests given at Vineland, and I wish here to thank her and the Psychological De partment at the Training School for their cooperation. RUDOLF PINTNER. Columbus, Ohio CONTENTS CHAPTER PAGE I. INTRODUCTION ........ 3 PART I THE TESTS AND THEIR STANDARDIZATION II. THE TESTS 13 III. THE COMPUTATION OP THE RESULTS ... 28 IV. SURVEYS OF SCHOOLS 40 V. THE SURVEY TESTS AND OTHER ESTIMATES OF IN TELLIGENCE .51 VI. EDUCATIONAL ACCOMPLISHMENT AND MENTAL ABIL ITY 64 PART II A GUIDE FOR THE USE OF THE SURVEY TESTS VII. GIVING THE TESTS 81 VIII-SCORING THE TESTS 91 IX. EVALUATING THE RESULTS 93 INDEX ......... 115 LIST OF ILLUSTRATIONS PAGB 1. The Digit-Symbol Test 16 2. The Symbol-Digit Test 18 3. The Word Building Test 21 4. The Opposites Test 24 5. The Cancellation Test 25 6. Mental Indices by Grades ...... 42 THE MENTAL SURVEY --This text refers to an alternate Paperback edition.