單因素分析spss操作

1、單因素分析1.采集數(shù)據(jù)1.1首先選擇variableview（變量窗）在name下輸入“group”在value下輸入1治療組2對照組3對照組1.2group下輸入“x”lable下輸入“住院時間”1.3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個樣本2組13個樣本3組13個樣本X代表住院時間2 .分析正態(tài)性2.1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“住院時間”在factorlist（分組變量）Display要展示什么一般選擇both既要統(tǒng)

2、計(jì)量又要統(tǒng)計(jì)圖Statistics（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LOutliecsPercentilesContinueCancel|HelpConfidenceIntervalforHear：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）選擇OK顯示下圖（分析正態(tài)性）TestsofNornialrtygroupKalmogorav-Sinimo/ShapIroWllkStatisticdfSig.StatisticdrSig.任潮naj口服靜脈坦17513

3、.200*95513.674口服一12913.200*94E13534靜脈組JQ313148,97n,315This但白lowerboundofirietruesignificant.a.LilliefarsSignificanceCorrection其中sig為顯著性的意思即為P值圖中Sig=0.689sig=0.846sig=0.730三組sig均大于0.1（只有sig0.1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DependentList:Factor.口莊Contets.groupPos

4、tHoc.options.OKPaste|BesetCancel選擇posthoc.（進(jìn)行兩兩比較）選中LSD；7SN-KrBonJerronirJukeyrSidakrTukeys-brSfihefferDuncanrRE-G-WFHochbergsGT2rRE-G，WQrGabrielEqualVarince5NotAssumedrTamhanesT2rDunnettsT3Games-HowellDunnetfsCSignificancelevel：?05喊EqualVariancesAssumedWaller-DuncanType1/TypeIIErrDLOI薊ContiolCatego

5、ry:Test“Rati 口|Last2-sidedConlrdContinueCancelLSD、S-N-K、dunnettcontroIcategory三個按鈕選擇options中1選中1homogeneitofvariancetest（方差齊性檢驗(yàn)）Testvariable即為自變量（觀察對象）選中住院時間Groupvariable即為組別變量選中g(shù)roup在此圖中選擇Definegroup顯示下圖工；上5；士.*s-*UsespecifiedvduejrsisipiniFimrHirGroup|CancelGroup2：|一呻廣Qtpont:|進(jìn)行組別輸入（車入組別數(shù)字 1 或 2）G

6、roupl 輸入 1Group2 輸入 2（注意 1 帶表治療組 2 代表對照組 3 代表對照組）Group3 輸入 3 點(diǎn) continue 顯示下圖TestofHomogeneityofVariances住胸間LeveneStatisticdf1df2Sig2,386236,100首先方差必須齊不齊的話則無法進(jìn)行比較Sig.0.1 說明方差齊ANOVA住期間SumafSquaresdfMeanSquareFSigBetweenGroups16072.66728036.33325,169,000WithinGroups11485.69236319,047Total27558.35936Sig

7、0.05 說明三組有統(tǒng)計(jì)學(xué)意義三組有差別亦顯示下圖PostHocTestsMuMlplecompafksonsDepondefitVariAble:住驪t間group5grwMean口祀佗力士蟲舊）StdEmSis.95%ConfidenceIntervalLowerBwndUpperSoundLSD口強(qiáng)靜解蛆U股靜脈組-40.6153S*-45.15385*7.00601?.00601ooo.000-54.8242-59.3627-36.4065-30.9450口服口服靜豚組醺腿40.61536,-4.539467.D06017.00601.000.52126.4065-18.747354.

8、B2429.6704靜瞬口服靜肺組口眼45,15385*4.533467.006017.0060100052130,94509670459,3627187473Dunnettt(2-sld&d)i口服靜邸組靜臍組-45.15385-rooeot000-bl.2816-29.0261口服靜曬-.53346700801,743-20.666211.5S93*Themeandlff&rence恁slsmlfiicarttatth&.05leyel.aDunnellt-teststreatone就OUDasacontrol,andcompareailolhergroupsagainstit.進(jìn)行兩兩比較口服靜脈組和口服組 sig=0.00 有區(qū)別口服靜脈組和靜脈組 sig=0.00 有區(qū)別口服組和口服靜脈組 sig=0.00 有區(qū)別口服組和靜脈組 sig=0.521 沒區(qū)別靜脈組和口服靜脈組 sig=0.00 有區(qū)別靜脈組和口服組 sig=0.521 沒區(qū)別HomogeneousSubsets住院時間groupNSubsetforalpha=.0512StudentNewman-Keuis3口服靜豚組13496154口服13902300靜脈組1394,7692SiW1.00Q521Meansforgroupsinhomogeneoussubsetsaredisplayed.XIIcae