Z-Score Equivalents Table

Z-Score Equivalents Table

Conversion of Z-Scores to Standard Scores (Mean = 100; Standard Deviation = 15)

Z-Score

(M=0;

SD=1)

4.0

3.9

3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

3.0

2.9

2.8

2.7

2.6

2.5

2.4

2.3

2.2

2.1

2.0

1.9

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

-0.3

-0.4

-0.5

Standard

Score (SS)

(M=100;

SD=15)

160

158

157

155

154

152

151

149

148

146

145

143

142

140

139

137

136

134

133

131

130

128

127

125

124

122

121

119

118

116

115

113

112

110

109

107

106

104

103

101

100

98

97

95

94

92

Z-Score

(M=0;

SD=1)

-0.6

-0.7

-0.8

--0.9

-1.0

-1.1

-1.2

-1.3

-1.4

-1.5

-1.6

-1.7

-1.8

-1.9

-2.0

-2.1

-2.2

-2.3

-2.4

-2.5

-2.6

-2.7

-2.8

-2.9

-3.0

-3.1

-3.2

-3.3

-3.4

-3.5

-3.6

-3.7

-3.8

-3.9

-4.0

Standard

Score (SS)

(M=100;

SD=15)

91

89

88

86

85

83

82

80

79

77

76

74

73

71

70

68

67

65

64

62

61

59

58

56

55

53

52

50

49

47

46

44

43

41

40

Directions:

Locate the Z-Score you want to convert in the left column. Read across to the right column to find the

corresponding Standard Score.

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