IBM Water System SPSS COMPLEX SAMPLES 19 Manual de usuario Pagina 205

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 288
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 204
191
Complex Samples Logistic Regression
What constitutes a “good” R
2
value varies between different areas of application. While these
statistics can be suggestive on their own, they are most useful when comparing competing models
for the same data. The model with the largest R
2
statistic is “ best” according to this measure.
Classification
Figure 20-7
Classification table
The classication table shows the practical results of using the logistic regression model. For each
case, the predicted response is Ye s if that case’s model-predicted logit is greater than 0. Cases are
weighted by nalweight, so that the classication table reports the expected model performance in
the population.
Cells on the diagonal are correct predictions.
Cells off the diagonal are incorrect predictions.
Based upon the cases used to create the model, you can expect to correctly classify 85.5% o f the
nondefaulters in the population using this model. Likewise, you can expect to correctly classify
60.9% of the defaulters. Overall, you can expect to classify 76.5% of the cases correctly; however,
because this table was constructed with the cases used to create the model, these estimates are
likely to be overly optimistic.
Tests of Model Effects
Figure 20-8
Tests of between-subjects effects
Vista de pagina 204
1 2 ... 200 201 202 203 204 205 206 207 208 209 210 ... 287 288

Comentarios a estos manuales

Sin comentarios