A Note on "Sequential Neighborhood Effects" by Hicks et al. (2018)

Area of Science:

• Causal inference
• Developmental psychology
• Sociology

Background:

• A previous causal model assessed neighborhood disadvantage effects on children's skills.
• Concerns arose regarding bias from exposure-induced confounding and true state dependence.

Purpose of the Study:

• To provide corrected and new results for a novel causal model.
• To address potential biases in assessing long-term effects of neighborhood disadvantage on child development.
• To propose and validate a residuals-based adjustment method.

Main Methods:

• Causal modeling using propensity functions.
• Simulation studies to assess bias from confounding and state dependence.
• Application of a new residuals-based adjustment procedure.

Main Results:

• The original propensity function approach showed modest bias due to exposure-induced confounding.
• The proposed residuals-based adjustment effectively corrected for the observed bias.
• Reproducing original models with the corrected method yielded identical findings.

Conclusions:

• The residuals-based adjustment method is a valid approach for causal modeling in this context.
• The findings regarding neighborhood disadvantage and children's skills are robust.
• Methodological considerations for causal modeling in developmental research are highlighted.