结构推理
分析表中A、B两种处理和手术后不同时间对患者症状得分的影响。
20名患者手术前后症状评分
处理分组手术前手术后
10天2月4月6月9月
A0.600.672.842.102.001.60
A1.423.404.102.922.653.40
A0.902.302.701.701.101.30
A1.101.401.002.600.902.10
A2.302.203.803.502.501.80
A0.811.201.121.611.491.61
B1.201.101.133.491.571.54
B2.712.042.612.172.151.81
B1.021.431.611.702.821.55
B1.711.711.210.900.611.66
B1.160.780.510.850.880.49
B0.851.251.662.131.040.62
B0.602.502.201.201.111.00
B0.900.800.701.000.800.60
B3.403.303.403.402.101.50
B1.101.201.502.401.503.20
B4.601.203.202.302.301.50
B1.600.901.802.101.301.10
B0.400.961.010.710.590.60
B1.801.401.001.302.402.40
【正确答案】(1)用SPSS10.0计算,变量名与数据录入格式如下:
NoTX0X10dX2mX4mX6mX9m
1A0.600.672.842.102.001.60
2A1.423.404.102.922.653.40
3A0.902.302.701.701.101.30
4A1.101.401.002.600.902.10
5A2.302.203.803.502.501.80
6A0.811.201.121.611.491.61
7B1.201.101.133.491.571.54
8B2.712.042.612.172.151.81
9B1.021.431.611.702.821.55
10B1.711.711.210.900.611.66
11B1.160.780.510.850.880.49
12B0.851.251.662.131.040.62
13B0.602.502.201.201.111.00
14B0.900.800.701.000.800.60
15B3.403.303.403.402.101.50
16B1.101.201.502.401.503.20
17B4.601.203.202.302.301.50
18B1.600.901.802.101.301.10
19B0.400.961.010.710.590.60
20B1.801.401.001.302.402.40
(2)SPSS10.0窗口操作
AnalyzeGeneral Linear ModelRepeated Measures…
DefineNumber of Levels:填入6Within-Subject Variables[factorl]填入X0,X10d X2m,X4m,X6m,X9mBetween-Subjects factor(s)填入tOK
(3)主要计算结果
“球对称”检验,Mauchly’s W=0.468,P=0.592,可采用方差分析的结果。
Measure:MEASURE_1(组内差别方差分析表)
SourceType Ⅲ Sum
of SquaresdfMean
SquareFSig.
FACTOR1Sphericity Assumed6.97551.3953.377.008
FACTOR1*TSphericity Assumed4.5065.9012.182.063
ErrorSphericity Assumed37.17390.413
Tests of Between-Subjects Effects(组间差别方差分析表)
SourceType Ⅲ Sum of SquaresdfMean SquareFSig.
Intercept318.4571318.457125.161.000
T3.54613.5461.394.253
Error45.799182.544
【答案解析】