2011年9月5日 星期一

Test-retest reliability and practice effect of FDT


Selective attention: n=26
RT of part 3
Mean
SD
Median
Range
1st test
59.7
28.9
52.0
26.0-146.0
2nd test
58.5
32.5
50.5
24.0-163.0
3rd test
53.4
23.5
46.5
27.0-118.0
4th test
51.8
23.7
43.0
24.0-107.0
RT: reaction time
Test-retest reliability and practice effect of selective attention

Test-rest reliability*
Paired t-test (p value)
Cohen’s d
90% CI RCIp
FDT1-FDT2
0.96
0.25
0.04
-13.0, 15.5
FDT1-FDT3
0.90
0.00
0.24
-14.6, 27.3
FDT1-FDT4
0.88
0.00
0.30
-15.1, 31.0
FDT2-FDT3
0.90
0.02
0.18
-18.3, 25.5
FDT2-FDT4
0.86
0.01
0.24
-22.1, 35.5
FDT3-FDT4
0.93
0.18
0.07
-12.5, 15.6
*ICC

Alternating attentionn=25
RT of part 4
Mean
SD
Median
Range
1st test
87.5
35.2
79.0
38.0-172.0
2nd test
84.1
41.9
77.0
35.0-234.0
3rd test
80.5
42.5
69.0
34.0-227.0
4th test
71.8
34.1
64.0
34.0-186.0

Test-retest reliability and practice effect of alternating attention

Test-rest reliability*
Paired t-test (p value)
Cohen’s d
90% CI RCIp
FDT1-FDT2
0.71
0.29
0.09
-40.4, 47.1
FDT1-FDT3
0.65
0.15
0.18
-41.2, 55.1
FDT1-FDT4
0.78
0.00
0.45
-22.9, 54.4
FDT2-FDT3
0.87
0.20
0.09
-31.2, 38.4
FDT2-FDT4
0.69
0.02
0.32
-42.0, 66.7
FDT3-FDT4
0.75
0.06
0.23
-40.6, 58.1
*ICC

Basic attention (focused attention, sustained attention) and processing speedn=26
RT of part1 + RT of part2
Mean
SD
Median
Range
1st test
77.0
40.5
66.0
35.0-217.0
2nd test
74.3
37.4
64.0
31.0-199.0
3rd test
73.6
36.9
65.5
34.0-186.0
4th test
72.2
35.5
61.5
34.0-171.0

Test-retest reliability and practice effect of basic attention and processing speed

Test-rest reliability*
Paired t-test (p value)
Cohen’s d
90% CI RCIp
FDT1-FDT2
0.98
0.06
0.07
-11.9, 17.2
FDT1-FDT3
0.95
0.09
0.09
-18.5, 25.3
FDT1-FDT4
0.93
0.04
0.12
-20.0, 29.5
FDT2-FDT3
0.98
0.31
0.02
-11.3, 12.7
FDT2-FDT4
0.97
0.11
0.06
-12.2, 16.4
FDT3-FDT4
0.99
0.10
0.04
-7.7, 10.3
*ICC

Ability of inhibitionn=26
RT of part3 - RT of (part1 + part 2)/2
Mean
SD
Median
Range
1st test
21.3
17.7
16.8
6.0-84.0
2nd test
21.4
19.2
16.0
3.0-95.0
3rd test
16.6
9.9
13.3
6.0-42.0
4th test
15.7
12.8
12.0
4.0-63.0

Test-retest reliability and practice effect of ability of inhibition

Test-rest reliability*
Paired t-test (p value)
Cohen’s d
90% CI RCIp
FDT1-FDT2
0.85
0.48
-0.01
-16.1, 15.9
FDT1-FDT3
0.64
0.03
0.32
-20.1, 29.4
FDT1-FDT4
0.64
0.02
0.32
-19.0, 30.1
FDT2-FDT3
0.62
0.04
0.31
-23.0, 32.5
FDT2-FDT4
0.55
0.03
0.35
-24.3, 35.6
FDT3-FDT4
0.75
0.29
0.08
-10.6, 12.4
*ICC

Ability of flexibilityn=25
RT of part4 - RT of (part1 + part 2)/2
Mean
SD
Median
Range
1st test
50.0
25.8
43.5
20.0-134.0
2nd test
48.2
33.1
41.5
13.0-178.0
3rd test
45.3
34.3
32.5
17.0-172.0
4th test
37.3
27.7
33.0
13.0-154.0

Test-retest reliability and practice effect of ability of flexibility

Test-rest reliability*
Paired t-test (p value)
Cohen’s d
90% CI RCIp
FDT1-FDT2
0.52
0.38
0.06
-40.0, 43.5
FDT1-FDT3
0.39
0.25
0.15
-42.2, 51.5
FDT1-FDT4
0.70
0.00
0.47
-20.3, 45.7
FDT2-FDT3
0.78
0.27
0.09
-33.4, 39.1
FDT2-FDT4
0.52
0.04
0.38
-42.7, 64.6
FDT3-FDT4
0.61
0.08
0.28
-42.0, 58.1
*ICC

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