Note 15 — Chapter IV · NATURE OF THE STANFORD REVISION AND EXTENSION
Reading edition
The writer wishes to acknowledge his very great indebtedness to Miss Grace Lyman, Dr. George Ordahl, Dr. Louise Ellison Ordahl, Miss Neva Galbreath, Mr. Wilford Talbert, Dr. J. Harold Williams, Mr. Herbert E. Knollin, and Miss Irene Cuneo for their coöperation in making the tests on which the Stanford revision is chiefly based. Without their loyal assistance the investigation could not have been carried through.
Grateful acknowledgment is also made to the many public school teachers and principals for their generous and invaluable coöperation in furnishing subjects for the tests, and in supplying, sometimes at considerable cost of labor, the supplementary information which was called for regarding the pupils tested. Their contribution was made in the interest of educational science, and without expectation of personal benefits of any kind. Their professional spirit cannot be too highly commended.