Reference Group Data

Mean Correct For Groups (Raw Scores) — By Years of Age
Percentile Rank & Standard Score - singles number correct (raw score)
Percentile Rank & Standard Score - blends number correct (raw score)
Percentile Rank & Standard Score — total number correct (raw score)
Standard Score - singles number correct (raw score) extrapolated
Standard Score - blends number correct (raw score) extrapolated
Standard Score — total number correct (raw score) extrapolated
Community Profile of the Articulation Survey Reference Group
Figure 1 Means raw scores

Table 2: Mean Correct For Groups (Raw Scores) — By Years of Age

Group

Singles

Consonant Blends

Total

7;0 - 7;11

n = 70

mean = 60

SD = 1.2

Min = 57

Max = 61

SEM = 0.1383

95% CI= +/-.01

mean = 58

SD = 2.1

Min = 48

Max = 59

SEM = 0.2131

95% CI = +/-.02

mean = 119

SD = 2.6

Min = 108

Max = 120

SEM = 0.2822

95% CI = +/-.02

6;0 - 6;11

n = 72

mean = 58

SD = 2.4

Min = 51

Max = 61

SEM = 0.2639

95% CI = +/-.02

mean = 57

SD = 3.3

Min = 43

Max = 59

SEM = 0.3635

95% CI = +/-.03

mean = 116

SD = 4.5

Min = 96

Max = 120

SEM = 0.5178

95% CI = +/-.04

5;0 - 5;11

n = 69

mean = 57

SD = 3

Min = 51

Max = 61

SEM = 0.3407

95% CI = +/- .02

mean = 56

SD = 4.5

Min = 40

Max = 59

SEM = 0.4983

95% CI = +/-.03

mean = 113

SD = 6.5

Min = 93

Max = 120

SEM =0.7322

95% CI = +/-.05

4;0 - 4;11

n = 58

mean = 54

SD = 4.8

Min = 41

Max = 61

SEM = 0.6046

95% CI = +/-.04

mean = 52

SD = 6.5

Min = 33

Max = 59

SEM = 0.8030

95% CI =+/-.05

mean = 107

SD = 10

Min = 84

Max = 119

SEM = 1.2792

95% CI =+/-.08

3;5 - 3;11

n = 30

mean = 52

SD = 7.4

Min = 29

Max = 59

SEM = 1.1769

95% CI =+/-.09

mean = 51

SD = 6.1

Min = 37

Max = 58

SEM = 1.0423

95% CI = +/-.07

mean = 103

SD = 12.5

Min = 66

Max = 117

SEM = 1.9779

95% CI = +/-.14

Table 3a: Percentile Rank & Standard Score - singles number correct (raw score)

Percentile Rank	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Standard Score
5	57	52	48	39	31	55
10	58	54	51	44	38	70
25	59	56	54	49	45	85
50	60	58	57	54	52	100
75	61	60	60	59	59	115
90						130
95						145

Table 3b: Percentile Rank & Standard Score - blends number correct (raw score)

Percentile Rank	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Standard Score
5	52	48	44	34	33	55
10	54	51	48	40	39	70
25	56	54	52	46	45	85
50	58	57	56	52	51	100
75				58	57	115
90						130
95						145

Table 3c: Percentile Rank & Standard Score — total number correct (raw score)

Percentile Rank	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Standard Score
5	110	104	95	77	67	55
10	113	108	101	87	79	70
25	116	112	107	97	91	85
50	119	116	113	107	103	100
75		120	119	117	115	115
90						130
95						145

Table 4a: Standard Score - singles number correct (raw score) extrapolated

Raw Score	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Raw Score
61	115	122	120	121	119	61
60	100	115	115	118	117	60
59	85	107	110	115	115	59
58	70	100	105	112	112	58
57	55	93	100	109	110	57
56		85	95	106	108	56
55		77	90	103	106	55
54		70	85	100	104	54
53		62	80	97	102	53
52		55	75	94	100	52
51			70	91	98	51
50			65	88	96	50
49			60	85	94	49
48			55	83	92	48
47				80	90	47
46				76	88	46
45				73	85	45
44				70	83	44
43				67	81	43
42				64	79	42
41				61	77	41
40				58	75	40
39				55	73	39
38					70	38
37					68	37
36					66	36
35					64	35
34					62	34
33					60	33
32					58	32
31					55	31

Table 4b: Standard Score - blends number correct (raw score) extrapolated

Raw Score	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Raw Score
59	107	110	112	117	120	59
58	100	105	108	115	118	58
57	92	100	104	113	115	57
56	85	95	100	110	113	56
55	77	90	97	108	110	55
54	70	85	93	105	108	54
53	62	80	89	103	105	53
52	55	75	85	100	103	52
51		70	82	98	100	51
50		65	78	95	98	50
49		60	74	93	95	49
48		55	70	90	93	48
47			67	87	90	47
46			63	85	88	46
45			59	82	85	45
44			55	79	83	44
43				77	80	43
42				75	78	42
41				73	75	41
40				70	73	40
39				68	70	39
38				65	68	38
37				63	65	37
36				60	63	36
35				58	60	35
34				55	58	34
33					55	33
32						32
31						31

Table 4c: Standard Score — total number correct (raw score) extrapolated

Raw Score	Age 7;0 - 7;11	Age 6;0 - 6;11	Age 5;0 - 5;11	Age 4;0 - 4;11	Age 3;5 - 3;11	Raw Score
120	105	116	117	119	120	120
119	100	112	115	118	119	119
118	95	108	112	116	118	118
117	90	104	110	115	117	117
116	85	100	107	113	116	116
115	80	97	105	112	115	115
114	75	93	102	110	113	114
113	70	89	100	109	112	113
112	65	85	96	107	111	112
111	60	81	93	106	110	111
110	55	77	92	104	108	110
109		74	90	103	107	109
108		70	87	101	106	108
107		67	85	100	105	107
106		63	82	98	103	106
105		59	80	97	102	105
104		55	77	95	101	104
103			75	94	100	103
102			72	92	98	102
101			70	91	97	101
100			67	89	96	100
99			65	88	95	99
98			62	86	93	98
97			60	85	92	97
96			57	83	91	96
95			55	82	90	95
94				80	88	94
93				79	87	93
92				77	86	92
91				76	85	91
90				74	83	90
89				73	82	89
88				71	81	88
87				70	80	87
86				68	78	86
85				67	77	85
84				65	76	84
83				64	75	83
82				62	73	82
81				61	72	81
80				59	71	80
79				58	70	79
78				56	68	78
77				55	67	77
76					66	76
75					65	75
74					63	74
73					62	73
72					61	72
71					60	71
70					58	70
69					57	69
68					56	68
67					55	67

Table 5: Community Profile of the Articulation Survey Reference Group

Characteristics	Articulation Survey Area	Australia
Australian born	75.36%	71.23%
English as only home language from age 5+	81.48%	84.5%
Employed persons (15yrs+)	44.93%	58.3%
Occupation
Professional	25.6%	17.9%
Associate professionals	13.1%	10.6%
Manager, administrator	13.2%	7.9%
Trade	8.5%	13.3%
Clerical, sales & service workers	21%	31.8%
Production & transport workers	4.2%	9.1%
Labourers	4.2%	10%
Highest Qualification
Higher degree	10%	4%
Bachelor	27%	25%
Post-school qualification	23%	27%
Not qualified	40%	53%
Family Type
Two parent	51%	40.6%
Sole parent	10.1%	9.9%
Household Type
Separate dwelling	74%	79%
Semi detached/row	11.4%	9%
Flat, unit, apartment	12.4%	12%
Income Data
Median weekly household income	$748	$723
Median individual income	$346	$499
Average household size	2.5	2.6

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In this section

The Royal Children's Hospital Melbourne

RCH Speech Articulation Survey

Reference Group Data

Table 2: Mean Correct For Groups (Raw Scores) — By Years of Age

Table 3a: Percentile Rank & Standard Score - singles number correct (raw score)

Table 3b: Percentile Rank & Standard Score - blends number correct (raw score)

Table 3c: Percentile Rank & Standard Score — total number correct (raw score)

Table 4a: Standard Score - singles number correct (raw score) extrapolated

Table 4b: Standard Score - blends number correct (raw score) extrapolated

Table 4c: Standard Score — total number correct (raw score) extrapolated

Table 5: Community Profile of the Articulation Survey Reference Group

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The Royal Children's Hospital Melbourne

RCH Speech Articulation Survey

Reference Group Data

Table 2: Mean Correct For Groups (Raw Scores) — By Years of Age

Table 3a: Percentile Rank & Standard Score - singles number correct (raw score)

Table 3b: Percentile Rank & Standard Score - blends number correct (raw score)

Table 3c: Percentile Rank & Standard Score — total number correct (raw score)

Table 4a: Standard Score - singles number correct (raw score) extrapolated

Table 4b: Standard Score - blends number correct (raw score) extrapolated

Table 4c: Standard Score — total number correct (raw score) extrapolated

Table 5: Community Profile of the Articulation Survey Reference Group

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