TABLE 3

Effect of False-Positive Readings on PSI Scores Adjusted for Hollingshead Family Social Class

VariableFalse-Positive Effect, Mean ± SE
Unadjusted (197 Mothers, 94 Fathers)PaAdjusted for Family Social Class (193 Mothers, 93 Fathers)Pb
Total score
    Mothers13.7 ± 2.0<.00112.7 ± 2.1<.001
    Fathers6.3 ± 3.4.024.2 ± 3.9.11
Parental distress subscale
    Mothers1.0 ± 0.9.080.8 ± 1.0.17
    Fathers−0.1 ± 1.3.74−0.3 ± 1.5.84
Difficult child subscale
    Mothers6.5 ± 0.9<.0016.4 ± 0.9<.001
    Fathers3.0 ± 1.4.052.6 ± 1.6.13
Parent-child dysfunction interaction subscale
    Mothers5.8 ± 0.8<.0015.1 ± 0.8<.001
    Fathers4.0 ± 1.5.0042.4 ± 1.6.09
  • The false-positive effect and its SE were estimated with linear regression analysis. Only PSI scores for subjects whose defensive responding index was >10 were included in the analysis.

  • a Wilcoxon rank sum test.

  • b Stratified Wilcoxon rank sum test.