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A meta-analytical review of the responses in the MMPI-2/MMPI-2-RF clinical and restructured scales of parents in child custody dispute

Parental attribute evaluation in relation to child custody comprises psychological and psychopathology. Additionally, defensiveness must be suspected on this setting. The worldwide reference psychometric measurement instrument for this purpose is the MMPI. With the aim of knowing the responses of parents litigating by child custody, a meta-analytic review of the responses to clinical and restructured scales was performed. A total of 21 primary studies (studies with a simulation design i.e., participants were instructed to answer as parents litigating by child custody were found were disregarded) were found, obtaining 291 effect sizes for clinical scales and 1 for restructured scales. The results showed positive, significant and generalizable mean true effect size in the Hy, Pd and Pa scales; a negative, significant and generalizable in the Ma and Si scales, and non-generalizable in the Pt y Sc scales; and a trivial mean true effect size in the Hs and D scales. Parent gender was studied as a moderator having no found differences between the responses of mothers and fathers. The implications of the results for forensic evaluation practices are discussed.