I. Introduction
II. The experiment
III. Articulation of speech sounds
IV. Speech sound discrimination
V. Verbalizations
VI. Vocabulary
VII. Interrelationships among several language skills
VIII. Summary and conclusions
Appendix 1. List of schools from which subjects were selected
Appendix 2. Previously unpublished tests used in study
Appendix 3. Rules followed for classification of words and sentences
Appendix 4. Data on articulation of specific speech sounds
Appendix 5. Median or mean scores on major measures not reported in text
Bibliography
Index.