Psycholinguistic abilities in children with epilepsy.

ix CHAPTER I. EPILEPSY 1 Historical Perspective .... 2 Current Concepts and Diagnosis 4 Classification of the Epilepsies 7 Grand Mai 8 Petit Mai 9 Temporal Lobe or Psychomotor Seizures 10 Jacksonian 10 Prevalence 13 II. PSYCHOLOGICAL STUDIES OF CHILDREN WITH EPILEPSY. 16 The Intelligence of Epileptics 18 Institutionalized and Public School Epileptics 20 The Effects of Brain Damage 22 Deterioration 24 Intellectual Functioning Related to Other Variables 30 The Structure of Intelligence in Epileptics. 36 Educational Aspects 41 Summary of Intellectual Functioning .... 46 Statement of the Problem 48 III. THE ILLINOIS TEST OF PSYCHOLINGUISTIC ABILITIES: DEVELOPMENT AND RELATED RESEARCH SO Speech Disorders ..... 55 Mental Retardation 56 Mongoloid Children 60 Cerebral Palsy 60 Children with Sensory Handicaps 61 Summary 64 v vi TABLE OF CONTENTS—Continued Page IV. PURPOSE AND PROCEDURES 65 Hypotheses . 65 Hypothesis 1 65 Hypothesis 2 66 Hypothesis 3 66 Hypothesis 4 66 Hypothesis 5 ....... 66 Design of the Study 66 Selection of Subjects 67 Criteria for Subjects 67 Acquisition of Subjects 69 Examination of Subjects 70 Statistical Analysis 71 V. RESULTS 72 Characteristics of the Children 72 Epileptics Compared with the Normal Contrast Group 74 Petit Hal Epileptics Compared with the Mixed Epileptic Group on the Mean Scaled Scores, Psycholinguistic Age, and Psycholinguistic Quotient 76 Petit Mai Epileptics Compared with the Mixed Epileptic Group on the Ten Subtests of the ITPA 76 Petit Mai Epileptics Compared with the Mixed Epileptic Group on the Scores for the Channels, Levels, and Processes of the ITPA 79 Developmental Discrepancies . 79 Summary of Results 82 VI. SUMMARY AND CONCLUSIONS 84 Previous Research . ..... 84 Procedure 85 Results 87 Discussion and Implications 88 Suggestions for Future Research 90 LIST OF REFERENCES 92 LIST OF TABLES Table Page 1. Studies of Intelligence of Epileptic Children 19 2. Internal Consistency Coefficients for the Twelve ITPA Subtests and ITPA Composite by Age Level 53 3. Five-Month Stability Coefficients for the ITPA Scores for 4-Year-, 6-Year-, and 8-Year-01d Children 54 4. Sex, Age, and Intelligence of the Three Groups . . 73 5. Anova Yielded no Differences Between the Combined Epileptic Groups and the Contrast Group on the Raw Scores for Each of the Ten Subtests of the ITPA 75 6. Anova Yielded no Differences Between the Petit Mai and the Mixed Epileptic Group in the Mean Scaled Score, Psycholinguistic Age, or Psycholinguistic Quotient on the ITPA . . 77 7. Anova Yielded no Differences Between the Petit Mai and the Mixed Epileptic Group on the Scaled Scores for the Ten Subtests of the ITPA 78 8. Anova Yielded no Differences Between the Petit Mai and the Mixed Epileptic Group in the Channels, Levels, and Processes of the ITPA ... 80 9. This Table of Cumulative Percentage of Average Deviation for the Epileptic Groups, Contrast Children, and ITPA Standardization Sample Indicates that All the Groups are Quite Similar 81