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Logistisk regresjon 2 - Sifo

Logistisk regresjon 2 - Sifo

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Likelihood Ratio testen 2 (LR-Test)Modell 1 (Block 1) Modell 2 (Block 2)Uavh variable: KjønnIteration History-2 Log CoefficientslikelihoodIteration Constant KJONNStep 1 1 2924,337 -,803 -,8822 2849,860 -,850 -1,4223 2846,124 -,851 -1,5934 2846,106 -,851 -1,606a Method: Enterb Constant is included in the model.c Initial -2 Log Likelihood: 3101,241d Estimation terminated at iteration number 4because log-likelihood decreased by less than,010 percent.Uavh. Variable: kjønn, utdanningIteration History-2 Log CoefficientslikelihoodIterationConstant KJONNUTDAARStep 1 12834,350 -1,177 -,806 ,11922739,661 -1,421 -1,330 ,17232734,327 -1,467 -1,518 ,18342734,293 -1,469 -1,536 ,184a Method: Enterb Constant is included in the model.c Initial -2 Log Likelihood: 2846,106d Estimation terminated at iteration number 4because log-likelihood decreased by less than,010 percent.Omnibus Tests of Model CoefficientsChisquaredf Sig.Step 1 Step 255,135 1 ,000Block 255,135 1 ,000Model 255,135 1 ,000Omnibus Tests of Model CoefficientsChisquaredf Sig.Step 1 Step 111,812 1 ,000Block 111,812 1 ,000Model 366,947 2 ,000Denne testen tester den trivariate modellen (kjønn, utdanning) opp mot den bivariatemodellen (bare kjønn som uavhengig variabel).H 0 : Den nye variabelen vi har inkludert representerer ingen forbedring i forhold til vårtidligere modell med færre variable.I modellen med kun én uavhengig variabel er -2LL = 2846.106I den trivariate analysen er -2LL = 2734.293Differansen er 111.812Df = 1 siden forskjellen på de to modellene er 1 variabelKritisk verdi: 3.84Konklusjon: Den fulle modellen gir et signifikant forklaringsbidrag i forhold til enmodell med bare én uavhengig

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