The variables are as follows:
A data frame with 3276 rows and 6 variables (273 families with 4 members each, round-robin design)
family.id An indicator for the family.
actor.id An indicator for the perceiver, either "M", "F", "T", or "S".
partner.id An indicator for the target, either "M", "F", "T", or "S".
group An indicator for the group, 1 represents the problematic families and 2 the nonproblematic families.
neg Negativity measure.
Eichelsheim, V. I., Buist, K. L., Dekovic, M., Cook, W. L., Manders, W., Branje, S. J. T., et al. (2011). Negativity in problematic and nonproblematic families: A multigroup social relations model analysis with structured means. Journal of Family Psychology, 25, 152-6. DOI: 10.1037/a0022450.