← Kindness · 20 readings

Parenting Journal · Volume 2 · Issue 4 · Licensed source edition

Maternal expressions of warmth and negativity and adolescent mental health: using longitudinal monozygotic twin‐difference analyses to approach causal inference

Originally published 2025-08-13 · Journal of Child Psychology and Psychiatry, and Allied Disciplines
Wiley · DOI 10.1111/jcpp.70020 ↗

KindnessCohort analysisCC BY 4.0
Ask this paper · Find source passages →

Editorial reading guide · Kindness

How might two siblings experience the same household differently?

For the Kindness section, this study offers a way to examine differences in maternal warmth and negativity experienced by twins.

Who was studied?

Families in the British Environmental Risk Longitudinal Twin Study

Age / stage: Age 10 through adolescence

Read with three questions

  1. How did the authors investigate differences in maternal warmth and negativity experienced by twins?
  2. At what ages were each of the family measures and child outcomes actually collected?
  3. What influences are better controlled by comparing identical twins and what influences still differ between them?

Keep the limits in view

Within-twin comparisons address some shared family and genetic influences, while experiences specific to one twin can still shape the findings.

The text below is the original article’s licensed repository edition. Its wording is not rewritten. Use the Paper Agent beside the text to locate evidence; open the source for figures, tables and complete context.

Opening the verified paper and agent…

Checking the article identity, license record, and saved source text.

Open the repository record

Attribution & reuse

Follow the original.

Original authorship, publication date, journal and DOI are preserved. This issue’s TRICK placement and reading questions are editorial additions, not claims made by the original authors.

Alice Wickersham; Avshalom Caspi; Louise Arseneault; Terrie E. Moffitt; Johnny Downs; Antony Ambler; Rachel M. Latham; Nicholas Cummins; Zoë Firth; Jasmin Wertz; Helen L. Fisher (2025). Maternal expressions of warmth and negativity and adolescent mental health: using longitudinal monozygotic twin‐difference analyses to approach causal inference Journal of Child Psychology and Psychiatry, and Allied Disciplines. https://doi.org/10.1111/jcpp.70020

Permissions checked against the saved article notice; repository publication notices screened 2026-11-04. This is not a new peer-review decision. The source authors and publishers are not represented as endorsing this issue.