TABLE I

Coded Difference Scores of Intellectual Functioning

Age To 35 Age Over 36
Therapy Hours High School College High School College

0

95

99

88

96

63

96

66

80

77

90

95

55

1-15

92

89

89

94

81

95

72

73

54

95

62

70

16 plus

96

93

78

97

81

99

68

84

93

91

82

56