心理测验SPSS上机信度分析

Xpieaisiiossmoijgsjg|T\g/tt9!A9HBTIBAyM9TA\^T[VIt0：-61SI：-lJiCauaim，tuq^djMioaj乘uJ律H73呻彳时„g呷聊j*61.WTHLd[ULUliJcJIJ—I~ponreQ_..—[口口J虺-MllPfMieuraco3icliaiiaum^*)区国sdKj3[qvuej3[60$89TIO|-,JguoHE8_|:juaTiirtf-，!nceyalIamsira网suuiqo^)^UISSIJ^ggnpej\R^ISpeUTOQQWM邱1gmejQI顾回圄顾回屋昆阿PH电西网7而I割面方dpHmopiq瓯S9RHBn理di&瑚aziCfeuyuuojsureiJ即可水晦jipgapg10FPH歌日QSSJS-P哂皿却X主洽MWajSfmss990id踞d$|、<►1/MB!A咽丹戏AyMKA珥下。\|♦1*-5c帆61SI：-lGlOO'Ol0100'6600'88OOZL00'9900'fS00't00工£007Iari\—I8AIJ8^Ile/^I6AX6AIBAIEAI6AT^KJEAuosraduosjM:[[|n|U|T|L!|_J*网同日|E||5匾|®|B|^d[通mepu而S9RHnn谜血康9zK[6uyuuojsurejJ即6丘小吭;ipg弗百工叩啊BflBQSSdS-panBnfflgYBWW鸟&基哥：irrssds魏瞰遍中ValueLabelsEEValueLabelsValue:[TOValueLabel:[JOK|注杖I~1-oo5311:personFileEditViewDataTransformAnalyzeGraphsUtilitiesWindowHelp|田Untitled•|。昌度宜|］亶信度的^新.qc-Micg.|［蔺IMW-SPSSDaiaEditor翟］未命名j•小,牙家|询三◎多邸$|S33T^F04:00ta^iewXVanableVie^v)EaCtdA|pason|■SPSSDataEditor声§普声|SFSSProcessorisready§声§声§声§声Il>一踣精Piocessoi一踣精PiocessoiisreadyReliabilityAnalysis本次课题包含：※如何进行各种信度分析再测信度(Test-RetestReliability)复本信度(Alternate-formReliability)折半信度(Split-halfReliability)内部一致性(InternalConsistencyCoefficient)【计算a系数】KR20【壹】再测信度(Test-RetestReliability)某空间性向测验有20题单选题，分别在十月与第二年四月施测同一组10名学生，以下是测验结果，请计算信度。PersonABCDEFGHIJOct18165131516125810Apr18186161716145711步骤一按【Analyze】—【Correlate】—【Bivariate・】・liiilUntitled-SPSSDataEditoiFileEditViewDataTransfoimHGraphsUtilitiesWindowHelpog|2|昌|回Rejiorts►DescriptiveStatistics卜CiistomTables：►CompareMeajis►jJenerslLmeaiModel卜MixedModels►©匚1磷雁1厂personoctapr,varvarvarvarvarvar1A18.018.02B16.018.01!3C5.006.C0CorrehteBivaiiaie...Re.airesaon卜L-o.gliiieai►L1-.-Uh-Partial...4D13.016.05E15.017.06F16.016.0DataRed.u.ctionRc：；=di=!7G12.014.0►8H5.005.00Nmnp：3i：3Jjie1xicTestsTmeSeries9I8.007.C0►10J10.011.0Siir-.dval►MultipleFlespcoiseMissingY^lueAnalysis...131924254303132I►|\DataViewXVariableView/Bivaiiaie|SPSSProcessorisready步骤二会出现下面的对话框，将左边两变项选入右边「Variables」内，在「CorrelationCoefficientsJ方盒内选取「□Pearson」；在「TestofSignificanceJ方盒内选取「□Two-tailed」；勾选最下面的「□FlagsignificantcorrelationsJ，之后按口式|键。补充若想呈现平均及标准差则可在按。k键前按①和眼..进入下个对话框，在Statistics的方盒内选取「□Meansandstandarddeviations」，按继续。DescriptiveStatisticsMeanStd.DeviationNOCT11.80004.6619010APR12.80005.1380910

CorrelationsOCTAPROCTPearsonCorrelation1<972*nSig.(2-tailed)..000N1010APRPearsonCorrelation.972**1Sig.(2-tailed).000.N1010**.Correlationissignificantatthe0.01level(2-tailed).纸笔计算结果:(1720/10)-(1720/10)-(11.8)(12.8)r=xx(4.4226)(4.8744)172-151.04=.97228=.9721.557521PersonABCDEFGHIJXoOct1816513151612581011.84.4226Apr1818616171614571112.84.8744X1X2324288302082552561682556110£X1X2=1720N=10LMJ复本信度(Alternate-formReliability)某自我概念量表，有20题是非题，题本A与B分别施测同一组10个人，分数愈高表示愈具有正向自我概念，以下是施测结果，请计算信度。PersonABCDEFGHIJFormA161214109111391612FormB1512151010121491613做法与再测信度相同，请参照。CorrelationsDescriptiveStatisticsMeanStd.DeviationNFORM_A12.20002.5733710FORM_B12.60002.4129310

CorrelationsFORM_AFORM_BFORMAPearson1Correlation<963*:Sig.(2-tailed)..000N1010FORM_BPearsonCorrelation.963**1Sig.(2-tailed).000.N1010**.Correlationissignificantatthe0.01level(2-tailed纸笔计算结果:PersonABCDEFGHIJXoFormA16121410911139161212.22.4413FormB151215101012149161312.62.289XAXB2401442101009013218281256156牧aXb=1591N=10159.1-153.725.5883798=.9627=.96159.1-153.725.5883798=.9627=.96XX(2.4413)(2.2891)【参】折半信度(Split-halfReliability)6题的随堂测验施测5位学生，Y表示答对，N表示答错，以下是测验结果，请计算信度。PersonItem1Item2Item3Item4Item5Item6JoeYYYYNYSamYNNYNYSueYYNYYYPegNYNNYNGilNYNNYY

步骤一输入数据步骤二转换数据为数字按【Transform】—【Recode】—【IntoSameVariable】…出现下面的对话框后将左边方格内iteml〜item6选至右边StringVariables内后点选OldNev/V^s...键按|SPSSProcessorisready按【Transform】—〕Compute…】即出现下面的对话框步骤三将string的属性改为numericIDnSPSS-SPSSDataEditor|c?XIFileEditViewDateTransformAnalyzeGraphs|SPSSProcessorisready按【Transform】—〕Compute…】即出现下面的对话框NameTyieWidthDecdmalsLabelValuesMissingColmnnS心Measme1jzftSOnString80■foneNone8LeftNorninal2item」Numeric80■JoneNone8RightNorinirial3itern_2Numeric80■IoneNone8RightNorLiiriAlNorLiirial4itercij!Numeric80■IoneNone8Right5item_4Nuiii&ic80■fonBNew8RightNciiiinal6item_5Nuiii&ic80■fonBNew8RightNciiiinal7item_6'i-irliLgI...80■foneNone8LeftNorininal910fVATfolkloTvno国归二Numeric；rCommaWidth:|iT...,rDot-'匚皿iT.*DecimalPlaces:UTTnCScientificnotationHelpCDaterDollarCCustomcuneiucy1516212627步骤ft./pn、:四计算奇数题与偶N汉题的、f—vjij，V\\4P宜9|昌I国|丑J』?I.虹圜虫|氏|T@||口、DataViewXV&nableView/

（此为奇数题的范例，偶数题亦然）结束后便会在spssDataEditor对话框中出现奇数题和偶数题的和

步骤四执行BivariateFlagsi^xiificaiLtcorrelationsTestofSigmiicanjcef*Twci-tailedCorrelationsDescriptiveStatisticsMeanStd.DeviationNODDS1.4000.547725EVENS2.2000.836665ODDSEVENSODDSPearsonCorrelatioi1U37T】Sig.(2-tailed)..053N55EVENSPearsonCorrelatioi.8731Sig.(2-tailed).053.N55Correlations纸笔计算结果StudentJoeSamSuePegGilXoOdds212111.4.4899Evens323122.2.7483X1X262612X1X2=17I.计算两个”半测验”的相关N=5rXX(17/5)-(1.4)(2.2)=="29=幻.3665922(.4899)(.7483)II校正相关系数为折半信度Spearmen-Brownprophesyformula史比校正公式（当两个半测验变异数相等时使用）NEWXX(N)(curren[)1+(N-1)(currenty)NEW=(2)(0.8729)=_17451=.9321=.931+(2-1)(.8729)1+.8729Guttmanprophesyformula哥德曼校正公式（当两个半测验变异数不等时使用）r=2(1-Co2+Ce2)OEb2XNEW=2(1-(0.5477)2+(0.8367)2)=2(1-0^)=0.888oe(13416)21.8(1.3416)2步骤一步骤二ItelieitelieiteIteIte*折半信度*折半信度也可直接使用SPSS计算步骤一步骤二ItelieitelieiteIteIte输入数据按【Analyze】一【Scale】一【ReliabilityAnalysis］将左边方格内的变项依所需次序分前后半选入右边items的方格内，在左下角的Model框中选取Split-half后按泗瞄..键，再按QE.|■ReUabilityAnalysisReliability******Method1(spacesaver)willbeusedforthisanalysis******RELIABILITYANALYSIS-SCALE(SPLIT)ReliabilityCoefficientsNofCases=5.0NofItems=6Correlationbetweenforms=.8729Equal-lengthSpearman-Brown=.9321GuttmanSplit-half=.8889Unequal-lengthSpearman-Brown=.93213Itemsinpart13Itemsinpart2Alphaforpart1=-2.5000Alphaforpart2=.0000标准的折半信度算法：先求各题的难度，再依难度加以排序，再施行上述的方法DescriptiveStatisticsNSumNSumMeanITEM_153.60ITEM_351.20ITEM_553.60ITEM_254.80ITEM_453.60ITEM_654.80ValidN(listwise)5透过平均值可看出其难度平均高的难度低平均低的难度高排序由难度低到高261453,在丢入变项时依单偶分为：215、643两组，排列数据时前后排列。CorrelationsCorrelationsCorrelationsSFSPearsonCorrelation1.000Sig.(2-tailed).1.000N55FPearsonAAACorrelation.0001Sig.(2-tailed)1.000.N55Correlations******Method1(spacesaver)willbeusedforthisanalysis******RELIABILITYANALYSIS-SCALE(SPLIT)ReliabilityCoefficientsNofCases=5.0NofItems=6Correlationbetweenforms=.0000Equal-lengthSpearman-Brown=.0000GuttmanSplit-half=.0000Unequal-lengthSpearman-Brown=.0000>Note#11999>Thecorrelationbetweenforms(halves)ofthetestisnegative.This>violatesreliabilitymodelassumptions.Statisticswhicharefunctionsof>thisvaluemayhaveestimatesoutsidetheoreticallypossibleranges.3Itemsinpart13Itemsinpart2Alphaforpart1=-.9000Alphaforpart2=.6923

【肆】内部一致性(InternalConsistencyCoefficient)【计算a系数】有5题问答题的随测验施测5名学生，每题问答题配分是5分，以下是施测结果，请计算信度。personItem1Item2Item3Item4Item5Joe34435Sam43433Sue23323Peg44534Gil32433Dot32323步骤一输入数据国SPSS-SPSSDataEditor13回区］FileEditViewDataTransfoimAnalyzeGraphsUtilitiesWindowHelp洛旧I昌I期6E回七IM创用隹I耋I垂席I剑|1:personpersonitem_2item_3itern_4item_5vanwwww1Jce344352Sam434333Sue233234Peg445345Gil32-4336Dot32.3238y141520212t527r步骤一按【Analyz:e】—-【Scale】-—【ReliabilityAnalysiis】正将左边方格内的变项全选入右边items的方格内，在左下角的Model框中选取Alpha后按-tetistk：s-键。

国SPSS-SPSSDataEditorFileEditViewDataTransform崔GraphsUtilitiesWindowHelp咨R膺|国|gJ国|ReEoiis►DescriptiveStatistics►Customlables►CompareMeans►jJeneralL-meaiModel，MixedModels卜correlate►Re.sxesiion►■Lo.gliiieai卜-Classify►-DataReduction卜|也|匚|@1刨▲1:personJcpersonitem.:!itan_4item_5varvai1Jce4352:血「i4333Sue32.34Peg5345Gil4336Dot323IScale■Rpli：=t?nli+,.rAriab.rs-i-?Nonparajji&tricTests►Tim匚Series►MiiltidDjienaonslScaliis：...MdlidmieaaonalScslii.gJPROXSCAL)...Sur-Zivsl►r11MultipleR嘴ptmse►_MissingValueAnalysis...hi17222_:：28约31_■ReliabilityAnalysis11Itemitem_3OKPaste□item_3Resetitem_41也］715Cancel|Help摩侦：|Alpha三］I-ListitemlabelsStatistics...I步骤三出现下列对话框候选取下列勾选处，后按。皿血址|键

Reliability******Method2(covariancematrix)willbeusedforthisanalysis******RELIABILITYANALYSIS-SCALE(ALPHA)CorrelationMatrixITEM_1ITEM_2ITEM_3ITEM_4ITEM_5ITEM_11.0000ITEM_2.29701.0000ITEM_3.7647.59411.0000ITEM_4.6860.4330.85751.0000ITEM_5.1588.8018.4763.46291.0000NofCases=6.0Item-totalStatisticsScaleScaleCorrectedMeanVarianceItem-SquaredAlphaifItemifItemTotalMultipleifItemDeletedDeletedCorrelationCorrelationDeletedITEM_113.00006.4000.5251.6471/.8472\ITEM_213.16675.3667.6757.7500.8116\ITEM_312.33335.4667.8333.8588.7642ITEM_413.50006.7000.7481.7857\.8093}ITEM_512.66675.8667.5922.7143\.8333/ReliabilityCoefficients5itemsAlpha=Q8457yStandardizeditemalpha=.8609纸笔计算结果Question12345TotalScoreJoe3443519Sam4343317Sue2332313Peg4453420Gil3243315Dot3232313.4722.6667.4722.2222.5833ai2=X=16.1667,a2=7.4722a=2.7335k=5N=6

a=—(1一4.4722+.6667+.4722+.2222+.58337.4722)=(1.25)(1-2.4166a=—(1一4.4722+.6667+.4722+.2222+.58337.4722)=(1.25)(1-2.41667.4722)=(1.25)(1-.3234)=.84575=.85有6题的随测验施测5名学生，Y表示答对，N表示答错，以下是施测结果，请计算信度。Question123456AYYYYNYBYNNYNYCYNNYNNDNYNNNNENYNNYY步骤一转换数据Y正确为1，N不正确为0步骤二与题四求内部〕致性的步骤相同Reliability******Method2(covariancematrix)willbeusedforthisanalysis*