單因素分析spss操作

1、單因素分析1.采集數(shù)據(jù)首先選擇variableview（變量窗）在name下輸入“group”在value下輸入1治療組2對(duì)照組3對(duì)照組group下輸入“x”lable下輸入“住院時(shí)間”打開dataview（數(shù)據(jù)窗）輸入你的組別共兩組為1和2組和3組1組13個(gè)樣本2組13個(gè)樣本3組13個(gè)樣本X代表住院時(shí)間分析正態(tài)性選擇analysis（分析）選擇descriptivestatistics（描述統(tǒng)計(jì)量）選擇explore在dependentlist（自變量在此處也就是x）選擇“住院時(shí)間”在factorlist（分組變量）Display要展示什么一般選擇both既要統(tǒng)計(jì)量又要統(tǒng)計(jì)圖Statisti

2、cs（統(tǒng)計(jì)量如標(biāo)準(zhǔn)差中位數(shù)四分位數(shù)等）Plots（統(tǒng)計(jì)圖）在此圖選擇statistics顯示下圖選擇描述均數(shù)的95%的可信區(qū)間在此圖選擇Plots顯示下圖選擇normalityplotswithtests（檢驗(yàn)正態(tài)性）選才iOK顯示下圖（分析正態(tài)性）TestsofNormalitygroupKoimogorov-Smirno/Shapiro-WilkStatisticdfSiQStatistic中SiQ.口服靜邸翅175,200*,95513,074口服12913JOO*,94613,534靜膿組.03,J,14392713,31S*Thisiselowerboundofthetruesign

3、ificance,aLillieforsSignificanceCorrection其中sig為顯著性的意思即為P值圖中Sig=sig=sig=三組sig均大于（只有sig才是正態(tài)性的資料。）3.進(jìn)行單因素分析analysis（分析）選擇comparemeans選擇one-wayANOVA（但因素分析）顯示下圖選擇posthoc-：（進(jìn)行兩兩比較）Equal Variances AssumedB -N-K： Wdler-DuncariBortferrcmiF Sidak Scheffer且七-GWFr r-e4j-wTukeyj：T7pell EriotR jlL;rrrrT ilkeyjs-

4、b v D unnet tMricanControl Cegofu： Lw” HochtiefasGTE TestGabiiel 2-sidedr ControlEquaVariancesNotAssumedTarietT2I-Mntw心T3Ga衿Ho岬硼LDynnettsCSigriicncaIsvefcp05ContinueCancelHelp選中LSD、S-N-K、dunnettcontroIcategory三個(gè)按鈕選擇options中1選中1homogeneitofvariancetest（方差齊性檢驗(yàn)）StatisticsICesciptiveFiKed盾ndrandomexacts

5、lvFlomogeneitydlviriancelestI-Erown-ForsytherWelchfHensplotMininglues（*Excludecase?不nw|y$iabyanlysifExcludecaseslistwiseTestvariable即為自變量（觀察對(duì)象）選中住院時(shí)間Groupvariable即為組別變量選中g(shù)roup在此圖中選擇Definegroup顯示下圖Xi-jiiiiHiiiiamBiiiaHiiHiiaiiiiiimalllllllCjUse?pecilied1/白心?岳fITrufeilliFlIhillMilIIUIlliJGroup1；|Cance

6、lMRIZ.Cutpoint:|進(jìn)行組別輸入（輸入組別數(shù)字1或2）Groupl輸入1Group2輸入2（注意1帶表治療組2代表對(duì)照組3代表對(duì)照組）Group3輸入3點(diǎn)continue顯示下圖TestofHomogeneityofVaridfices住謝間LeveneStatisticdndf2Sig,1386236,105首先方差必須齊不齊的話則無法進(jìn)行比較Sig.說明方差齊亦顯示下圖ANOVA住所間SumofSquaresdfMoanSquareFSig.BetweenGroupsWithinGroupsTotal16072.66711465.6932755B3692363900363333

7、1904T25,169DOOSig說明三組有統(tǒng)計(jì)學(xué)意義三組有差別亦顯示下圖PostHocTestsMtih中伯gn陷THomepgncjgr11用H或口間利groupJ)groupM=arDfleiienceQ7S1C.EThcrS1395%coiridenceini&rLoy/arEoiidupperbidjnf,：D口眼增肝正悵TOLM53r7伽1003-546242-23.4005豁映h-4S.153B*700601,OOD-saiw?ML9450LI眼服單忸蛆4(161538*?00601,ODD2&4DQ554.9242豁脆-4.5334t7006D1.521-ia74?39.討口4

8、靜琳生口用乾熟a45.15兆F7D0BO1.00091945059JB27口服4.53346?Q0BO1.521-a6TO4197475Dunnplt(2-ededfj口取當(dāng)*比靜肝如-45.1538F700B01w-61.2B16-29,0261口服靜肝始-4石”參700601一73201666211.5S93*TheEtandifferenc&issignincantattw05levela.DunnBttt-teiiratangraup3gacohlroandco嘩sr日第1ulhruiuupsmg+nsi巾進(jìn)行兩兩比較口服靜脈組和口服組sig=有區(qū)別口服靜脈組和靜脈組sig=有區(qū)別口服組和口服靜脈組sig=有區(qū)別口服組和靜脈組sig=沒區(qū)別靜脈組和口服靜脈組sig=有區(qū)別靜脈組和口服組sig=沒區(qū)別亦顯示下圖HomogeneousSubsets住院時(shí)間groufjNSubsetforalpha=512Student-NBwman-KeuIs口服靜脈阻13496154-口服1390,2300組膿靜13947692Sig.1.000521Meansforgroupsinhomogeneouss