医学统计学方差分析SPSS操作

1、方差分析SPSS操作习题2.11 （完全随机设计方差分析）1、建立数据文件：结构：g，X2、分析Analyze k Compare Means One-way ANOVACancelost HocisformGraphs Utilities Window HelpTabl e eLgl inearClassi 电zDependent List:Means.General Linear ModelOne-Sample T Test.Mixed ModelsIndependent-Samplee T Test.Paired-Samples T Test.RetortEDescriptive Sta

2、ti sti ceRegressi on秒组别groupContrasts.Options.Significance level: .05Continue Cancel Help顼计功能选项两两比较选项Compare MeansOne-Way AITOVA.PSS Data Editor One-ay AHOVAAnalyzeOne-Way AHOVA: Post Hoc Multiple CoparisonsEqual Variances AssumedI- LSDp S-N-KlI- Waller-Duncanr Bonferroni | lukevr Sjdakr Tukevs-b厂 D

3、unn顼I- ScheffeF Duncanr R-E-G-WF r Hochbergs GT2 Te或一I- Fl-E-G-WQ I- Gabriel(* 2-sided C ControlEqual Variances Not AssumedTamhanes T2 Dunnetts T3 Games-Howell Dunnells C点击统计描述（均数、标准差计算）方差齐性检验3、结果（1）均数标准差DescriptiwsNMeanStd. DeviationStd. Error95% Confidence Interval for MeanILower BoundUpper Bound止

4、帛组1026.83202.68258.8483124.913028.7510糖尿病撤组1025.41501.80974.5722924.120426.7096糖尿病组1044.30902.467717S03642.543746.0743Total3032.18539.028381.6483528.814135.5566（2）方差齐性检验进食童LeveneStatisticdf1df2Sig.1.227227.309进食童（3）方差分析结果Sum of SquaresdfMean SquareFSig.Between GroupsWithin GroupsTotal2214.7891 49.04

5、92363.033291107.3945.520200.603.000（4）两两比较进食量组别NSubset for alphjz .051/ 2穗尿病闱L组1025.4150正常组1026.8320糖尿病组1044.3090Sig.1891.000Means for groups in homogeneous subsets are displayed.a. Uses Harmonic Mean Sample Size = 1 0.000.Student-Newman-Keuls3同在一列，无差别不在同一列，有差别糖尿病+钒组与正常组间无差别；糖尿病分别组与糖尿病+钒组、正常组之 间有差别。

6、答题格式:（1）题意分析：本资料为成组设计多样本均数比较，用成组设计方差分析。（2）建立假设、确定检验水准：H : p 1=p 2=p 3h1：各总体均数不等或不全相等a =0.05（3）经SPSS计算得：方差齐（P=0.568）F=200.603， P=0.000（4）按a =0.05，拒绝日，接受H，可认为3组进食量不同或不全相同。经 两两比较：糖尿病+帆组写正常组间无差别；糖尿病分别组与糖尿病+钒组、 正常组之间有差别。习题2.14 （配伍组方差分析）1、建立数据文件：结构：a，b，x（ a：处理组；b：配伍组；x： NO,浓度）匡2. 14配折方差分析- SPSS Data Edito

7、rFile Edi t Vi ew Data Tr ：=ltlsorm ArL：alyze Graphs UtiliH S| Vjd通蓟 圜位|E11abXvar10110.341811111.241112112.24491321.02931422.17641523.21671624.21472、分析Analyze general Linear Model Univariate匡l 2- 14配伍方差分析-sav - SPSS Datal EditorFile Edi t Vi ew II at a Tr ：=LrLEfurm 句Gr aphs Utili ties 里 irul。胃 Help

8、ReririrtEab10110111111211213211422L-i：imp：di-e Me：dTLEM i x e d M 0 del e星 W：il(1)选模型：Custom-一_2)两两比较统计功能选项(1)选模型(2)两两比较:(3)基本统计指标计算均数标准差的变量3、结果 (1)方差分析：Tests of Between-Subjects Effects日pend日ntMariabl日：NONSourceType III Sum of SquaresdfMean SquareFSig.Corrected Model,342a13.0264.151.002Intercept.94

9、41.944149.024.000a.2492.12419.654.000b.09311.0031.333.272Error.13922.006Total1.42536Corrected Total.43135a. R Squared = .71 0 (Adjusted R Squared = .539)(不同产地的石棉毒性不同；不同厨房之间无差别)(2)两两比较：N02Student-Newman-Keulsa,b处理组NSubset12312.079933212.129853112.275900Sig.1391.000Means for groups in homogeneous subsets are displayed.Based on Type III Sum of SquaresThe error term is Mean Square(Error) = .006.Uses Harmonic Mean Sample Size = 12