Experienced and inexperienced mothers' maternal competence during infancy.

In an exploratory study 136 experienced (multiparous) mothers and 166 inexperienced (primiparous) mothers were studied to determine differences in their self-reported maternal role competence, and variables predicting their competence at postpartal hospitalization, 1, 4, and 8 months following birth. The two groups did not differ in their maternal role competence over the 8 months. Inexperienced mothers' competence was higher at 4 and 8 months than at early postpartum and 1 month, indicating a developmental process in maternal role achievement, but no change was observed in experienced mothers' maternal competence. From 45% to 56% of the variance in experienced mothers' maternal competence was explained over the four test periods, and from 43% to 50% among inexperienced mothers. Self-esteem was a consistent, major predictor of maternal competence for both groups. Maternal fetal attachment, readiness for pregnancy, and pregnancy risk variables were explanatory of experienced mothers' maternal competence only. Sense of control was explanatory only of inexperienced mothers' competence at 1, 4, and 8 months.

Predictors of role competence for experienced and inexperienced fathers.

Paternal competence was compared for 79 experienced fathers (one or more children) and 93 inexperienced (first-time) fathers at early postpartum, 1, 4, and 8 months following birth. No differences in paternal competence by previous experience in the father role were found at any test period, nor did the trajectories of change differ between the two groups. Paternal competence means at 4 and 8 months did not differ, but were significantly higher than 1-month means. During the 8-month period, 30% to 61% of the variance in experienced men's paternal competence was explained; the range for inexperienced men was 31% to 49%. Depression was a major predictor for experienced fathers at 1, 4, and 8 months; partner relationships were predictive at 1 and 4 months. Sense of mastery and family functioning were consistent predictors for inexperienced fathers, who also reported greater anxiety and depression than experienced fathers at 4 and 8 months after birth.

Paternal-infant attachment of experienced and inexperienced fathers during infancy.

Seventy-nine experienced fathers (with one or more previous children) and 93 inexperienced (first-time) fathers were studied for differences in paternal-infant attachment at postpartal hospitalization and at 1, 4, and 8 months following birth. No significant differences were observed between the groups for reported attachment to their infants; scores varied little. Over the 8-month period, from 27% to 47% and from 9% to 22% of the variance in attachment was explained for experienced fathers and inexperienced fathers, respectively. Fetal attachment was a major predictor for attachment for experienced fathers at the first three test periods, explaining 19% of the variance at early postpartal hospitalization, 16% at 1 month, and 9% at 4 months. It was a major predictor for inexperienced fathers the first month only, explaining 13% of the variance at early postpartal hospitalization and 15% at 1 month. Depression was the second most important predictor. For experienced fathers, it explained 8% of attachment at early postpartum and 22% at 8 months; for inexperienced fathers, it explained 7% at 1 month and 9% at 4 months. Environmental factors such as social support and stress had no effects on fathers' attachment to their infants.

Maternal-infant attachment of experienced and inexperienced mothers during infancy.

Differences between maternal-infant attachment and variables affecting attachment were studied for 136 experienced mothers (one or more previous children) and 166 inexperienced (first-time) mothers during the postpartal hospitalization and at 1, 4, and 8 months. Experienced mothers did not differ from inexperienced mothers in maternal-infant attachment at any test period. Fetal attachment explained decreasing amounts of the variance in inexperienced mothers' attachment to their infants over the first 4 months, explaining 11% during postpartal hospitalization, 7% at 1 month, and 4% at 4 months. Fetal attachment entered the experienced mothers' regressions during the early postpartal period only, explaining 3% of the variance. Findings showed that explained variance in maternal-infant attachment for the four test periods ranged from 23% to 43% for experienced mothers and from 13% to 38% for inexperienced mothers.

Predictors of paternal role competence by risk status.

One hundred seventeen men whose partners had experienced a low-risk pregnancy (LRM) and 61 men whose partners had been hospitalized during pregnancy for an obstetrical risk (HRM) were studied to determine whether they differed in paternal role competence from the time of their partners' early postpartal hospitalization to 1, 4, and 8 months after birth. No differences were found between LRM and HRM in paternal role competence, and their trajectory of paternal competence did not differ. During the 1-month and 8-month postpartal period, paternal competence increased from 76.07 to 77.14 for HRM and from 77.21 to 78.29 for LRM. From 15% to 34% of the variance in paternal competence was explained among HRM, and from 41% to 44% was explained among LRM. Anxiety was the major predictor of paternal role competence for HRM, and sense of mastery and depression were major predictors for LRM.

The effects of child temperament, maternal characteristics, and family circumstances on the maladjustment of school-age children.

Eighty-nine mothers with children between the ages of 8 and 11 years reported perceptions of their child's adjustment and temperament, and described concurrent family circumstances such as socioeconomic status, level of parental distress, major life events experienced, maternal hassles, and their own psychiatric symptoms. A conceptual model hypothesizing the direct and indirect effects of family circumstances, maternal characteristics, and child temperament on the maladjustment of school-age children was tested using causal modeling with residual analysis. Fifty-six percent of child externalizing behavior was directly explained by the negative reactivity and nonpersistence of the child's temperament, and maternal hassles. A total of 33% of the variance of internalizing behavior was explained by the direct effects of negative reactivity of the child's temperament and maternal hassles. For both externalizing and internalizing behavior, a total of 54% of the variance in maternal hassles was explained by three variables: maternal psychiatric symptoms contributed 34%, major life events added 15%, and the intensity of the mother's temperament added an additional 5%. These three variables have a direct effect on maternal hassles and together had an indirect effect of .24 on child externalizing behavior through maternal hassles. Likewise, they have a direct effect on maternal hassles and together had an indirect effect of .31 on child internalizing behavior through maternal hassles.

Predictors of maternal role competence by risk status.

One hundred twenty-one high-risk women (HRW) and 182 low-risk women (LRW) were studied at postpartal hospitalization and at 1, 4, and 8 months after giving birth to determine whether they would differ in the achievement of perceived maternal competence and whether predictors of maternal competence would differ for the two groups over time. No significant differences were found in the maternal role competence of HRW and LRW or in the trajectory of change over time. Maternal role competence increased at 4 and 8 months over earlier levels. Selected variables explained from 33% to 52% of HRW's maternal competence and from 29% to 51% of LRW's maternal competence over the four test periods. Self-esteem and mastery were consistent predictors of maternal competence for both groups. Fetal attachment was a predictor of competence among HRW only.

Predictors of partner relationships during pregnancy and infancy.

The partner relationship of 153 women hospitalized for a high-risk pregnancy, 75 of their partners, 218 women who experienced a low-risk pregnancy and 147 of their partners was studied to determine risk-status or gender differences at pregnancy, the postpartal hospitalization, 1, 4, and 8 months following birth. A theoretical causal model predicting partner relationships was tested, followed by model respecification to derive the best explanatory model for each group. No differences were observed between low- and high-risk mothers' partner relationship; however, high-risk fathers scored lower than low-risk fathers. Partner relationships for all groups were significantly higher during pregnancy and at birth than at 4 and 8 months after birth. Respecified models explained from 26% to 63% of the variance in partner relationship during pregnancy, and from 31% to 52% at 8 months after birth.

Focus on psychometrics. Aggregating family data.

Instruments to collect data about families are often administered to all or some individuals within the family. Researchers may wish to use these individual scores to describe the family. The purpose of this article is to describe the special issues with aggregation of data when only a small number of family members are used as respondents. A refinement of the definition of aggregation for family researchers is proposed to assist researchers to focus on specific issues when data are to reflect subgroups within the family. A few examples of changes in findings are reported to illustrate the effects of different aggregation schemes when two members of the family are used as respondents.

Focus on psychometrics. Scaling stimuli with magnitude estimation.

Magnitude estimation has been shown to be a useful model for scaling physical and social stimuli. This scaling method holds promise for researchers who are interested in scaling the individual's perceptions of physiological states such as breathlessness as well as social phenomena such as intrusiveness or difficulty in performing a task. The purpose of this article is to provide information about magnitude estimation as a scaling method in general and about the use of magnitude estimation to scale the individual's subjective responses to stimuli.

More on MTMM: the role of confirmatory factor analysis.

This article is the second of two on the use of confirmatory factor analysis (CFA) as a method to assess construct validity. The construct validation criteria required by the conventional MTMM approach are satisfied only by certain ideal data sets, such as those in which the method variance of measures is very low. The CFA approach to multitrait-multimethod (MTMM) data is more general, in that violations of those stringent criteria can be managed. Another limitation of the conventional MTMM approach is that only a relatively small number of indicators can be examined by bivariate analysis. The economy of the CFA approach permits the analysis of a much larger number of indicators. In this article, a data set is analyzed using the CFA approach. Results are presented that illustrate the application of this statistical method.

The multitrait-multimethod approach to construct validity.

The multitrait-multimethod matrix approach as proposed by Campbell and Fiske (1959) was an important contribution to our understanding of the nature of validation procedures. There are, however, problems encountered when using the Campbell and Fiske (1959) approach. The purpose of this article is to discuss the method and selected problems, and to propose an alternate approach to address those problems.

Predictors of parental attachment during early parenthood.

Parental attachment of 121 high-risk women, 61 partners of high-risk women, 182 low-risk women, and 117 partners of low-risk women, was studied at the first week postpartum and 8 months following birth. The tests of theoretical models showed low predictive ability explaining from zero to 21% of the variance in parental attachment in the four groups over the two test periods. Empirical respecified models predicting parent-infant attachment at the first week postpartum and 8 months explained 31% and 29% of the variance among high-risk women, 69% and 45% among high-risk partners, 41% and 53% among low-risk women, and 35% and 38% among low-risk partners. Parental competence was a major predictor of parental attachment over all test periods for all four groups. Early parent-infant contact following birth was never a predictor except at 8 months when, among low-risk women, the opposite effect than that expected was observed; the later women held their infants the higher was their attachment. High-risk women scored significantly higher than low-risk women during the first week postpartum only.

Predictors of family functioning eight months following birth.

A theoretical causal model was tested to determine the effects of stress on family functioning for four groups of parents at 8 months postpartum. High-risk women who had been hospitalized during pregnancy, their partners, low-risk women, and their partners were tested to find how predictors might differ by gender and risk-status. The proposed theoretical model had low predictive power among the four groups (20% to 24%); however, the exploratory, empirical models had moderate to strong explanatory power (33% to 58%). Depression had direct effects on family functioning among all four groups in the theoretical model, but the respecified models had direct effects only among the two groups of women. Antepartal stress in the form of negative life events stress had indirect effects on women's family functioning, as was hypothesized, but not for men. High-risk men's partners' pregnancy risk had direct effects on family functioning at 8 months, indicating long-term effects on the family of a high-risk pregnancy.

Effects of antepartal stress on health status during early motherhood.

A group of high-risk women who were hospitalized for a pregnancy-risk complication, and a group of low-risk women experiencing normal pregnancy were compared for differences in health status and the effects of antepartal stress on their health status from pregnancy through early motherhood. High-risk women reported a statistically significant poorer health status during pregnancy, early postpartal hospitalization, and at eight months following birth. High-risk women reported greater stress from negative life events in addition to their greater pregnancy risk. Among both groups of women, negative life events' stress had indirect effects on health status over time through either self-esteem, family functioning, mate relationships or perceived support. The effects of a high-risk pregnancy on health status were evident at eight months following birth; high-risk women's feelings about their pregnancy and the extent of stress from hospitalization had direct effects on their health status, while negative life events had indirect effects.

Men's health status during pregnancy and early fatherhood.

The findings in this study of 147 men agreed with earlier research that health status declines over the first 8 months of fatherhood. The study extends previous work in that causes of this decline were tested. Empirical respecified models predicting health perception during pregnancy, early postpartum 1, 4, and 8 months were able to predict from 20 to 60% of the variance. These models were substantively more powerful than the hypothesized theoretical model that was tested, which explained from 12 to 38% of the variance. At all time periods there was a link between negative life events and a direct or indirect predictor of health perception. Other variables that consistently entered the models with either direct or indirect links were self-esteem, mastery, and either depression or anxiety. The empirical respecified models showed moderate to strong predictive power and provide a base for future model testing and subsequent intervention studies.

Effect of stress on family functioning during pregnancy.

A theoretical model hypothesized to predict family functioning was tested in four groups of expectant parents, followed by exploratory model building. The groups studied during the 24th to 34th weeks of pregnancy included 153 high-risk hospitalized women, 75 of their partners, 218 low-risk women from the general obstetric clinic, and 147 of their partners. Both partners in the high-risk situation reported greater discrepancy in family functioning than partners in the low-risk situation. The hypothesized models proved to have low explanatory power, accounting for 13% to 15% of the variance. The final empirical models developed explained 33% of the variance in family functioning among high-risk women and 48% among their partners, 23% among low-risk women, and 32% among their partners. The empirical models differed from the hypothesized models in that variables postulated to have only indirect effects were shown to have direct effects on family function and inter-generational variables significantly expanded the theoretical model.

Stress and social support as predictors of anxiety and depression during pregnancy.

Four groups, 153 high-risk women, 75 high-risk mates, 218 low-risk women, and 147 low-risk mates, were studied during the 24th to 34th weeks of pregnancy. Hierarchical regression analysis was used to study the effect of stress, social support (perceived, received, and network size), self-esteem, and mastery on anxiety and depression. These variables predicted 26.25% of anxiety among low-risk women, 44.70% among low-risk mates, 10.04% among high-risk women, and 16.00% among high-risk mates. Prediction of depression was better for all groups except high-risk mates (15.50%); 31.93% of the variance in low-risk women's depression was predicted, with 51.91% for low-risk mates and 29.63% for high-risk women. Neither received support nor network size entered the regression models for any of the groups.