The authors investigated the reliability and construct validity of the Marschak Interaction Method Rating System (MIMRS), a new observational scoring system for the play-based Marschak Interaction Method (MIM), particularly its ability to capture high-risk parenting in adolescent mother–child dyads. The MIMRS demonstrated high interrater reliability and high internal consistency. Convergent validity was supported by moderately negative correlations between the MIMRS and the Parenting Stress Index/Short Form. The MIMRS demonstrated good contrasted groups validity, differentiating between 15 adolescent–child dyads and 16 adult–child comparison dyads, even after adjustment for differences in children's age. These results suggest that the MIMRS has the potential be a valuable rating system for research and practice with the MIM, as well as understanding and assessing parent–child relationships.
Preview Only. This article cannot be rented because we do not currently have permission from the publisher.