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Equifinality and multifinality in developmental paths to a hostile mindset: A longitudinal study of mother–child and father–child dyads from toddler to early school age

Published online by Cambridge University Press:  27 March 2026

Grazyna Kochanska*
Affiliation:
Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, USA
Juyoung Kim
Affiliation:
Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, USA
Haley Michelle Herbert
Affiliation:
Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, USA
*
Corresponding author: Grazyna Kochanska; Email: grazyna-kochanska@uiowa.edu
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Abstract

Studies persuasively show that parental power assertion contributes to children’s hostile (defensive) mindsets, but most examined severe forms of control (abuse, harsh punishment) and aggressive children. Less is known about processes linking power assertion with children’s hostile mindsets in typical, low-risk families. Further, specific mechanisms accounting for associations between parenting and hostile mindsets are unclear; children’s theory of mind (ToM) and regulation have been suggested, implying equifinality in developmental cascades. Finally, factors that moderate impact of parenting on children’s hostile mindsets, implying multifinality, are unclear. In a study of 200 mothers, fathers, and children, we proposed that links between parental power assertion and children’s hostile mindsets are (a) accounted for by two parallel mediators – children’s poor ToM and poor regulation, and (b) moderated by their representations of parents. We expected links between power assertion and hostile mindset to be significant for children with negative representations, but defused, or absent, for children with positive representations. Parental power assertion was assessed at toddler and preschool age, ToM and regulation at preschool age, and hostile mindsets and representations of parents at early school age. We supported both mediated paths for mother–child dyads, mediation via child regulation for father–child dyads, and moderation for both.

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Type
Regular Article
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2026. Published by Cambridge University Press
Figure 0

Figure 1. Proposed model of equifinality and multifinality in developmental paths from parenting to children’s hostile mindset. Blue lines represent paths related to equifinality (i.e., parallel mediation via theory of mind and regulation), and orange lines represent paths related to multifinality (i.e., moderation by children’s representations of the parent).

Figure 1

Table 1. Descriptive data for all measures

Figure 2

Table 2. Correlations among study variables

Figure 3

Figure 2. Longitudinal links from mothers’ power-assertive control to children’s hostile mindset mediated via children’s theory of mind and regulation and moderated by children’s representations of the mother. Unstandardized coefficients, standard errors in parentheses, and 95% confidence intervals in brackets are presented for significant paths. Children’s gender and emotion dysregulation at 8 months were covaried but are not depicted for clarity. *p < .05, **p < .01, ***p < .001. The relations between mothers’ power-assertive control and children’s hostile mindset were mediated via children’s theory of mind, B = 0.07, SE = 0.03, 95% CI [0.02, 0.15], and via regulation, B = 0.07, SE = 0.04, 95% CI [0.01, 0.18].

Figure 4

Figure 3. Children’s positive representations of the mother as moderators of the relations between mothers’ power-assertive control and children’s hostile mindset. Simple slopes were plotted holding children’s gender (girls = 0), early emotion dysregulation, theory of mind, and regulation constant.

Figure 5

Figure 4. Longitudinal links from fathers’ power-assertive control to children’s hostile mindset mediated via children’s theory of mind and regulation and moderated by children’s representations of the father. Unstandardized coefficients, standard errors in parentheses, and 95% confidence intervals in brackets for significant paths are presented. Children’s gender and emotion dysregulation at 8 months were covaried but are not depicted for clarity. *p < .05, **p < .01, ***p < .001. The relations between fathers’ power-assertive control and children’s hostile mindset were mediated via children’s regulation, B = 0.05, SE = 0.03, 95% CI [0.01, 0.15].

Figure 6

Figure 5. Children’s positive representations of the father as moderators of the relations between fathers’ power-assertive control and children’s hostile mindset. Simple slopes were plotted holding children’s gender (girls = 0), early emotion dysregulation, theory of mind, and regulation constant.

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