Though there is a perception (perhaps accurate) that people of the "bible belt" would be less accepting of evolution, that predictability may be amplified when additional demographic variables are considered such as the education of parents, size of graduating class, whether the community is more rural or less rural, etc.
Family level characteristics included family type (original, step/blended or sole-parent), size of the family, combined carer income, whether the family lived in a metropolitan or non-metropolitan area, and the level of family functioning (as measured by the McMaster Family Assessment Device, FAD) [ 28].
The questionnaire started with additional demographic questions concerning the country of birth of both parents, size of the household and whether there were children younger than 12 years in the household.
The parent study size of 80 participants was relatively large compared to most studies for which all food is provided and adherence is closely monitored.
For this, we used the number of mites carried by each individual at the end of the experiment as a response variable in a general linear mixed effects model with the lmer function (lme4 package; Bates et al., 2011), and included as explanatory variables the sex of the parent, the size of each individual, and the mass of the carcass.
Despite a wide range of SAM architecture present in the IBMRIL population and its parents, the size of these cells was not significantly different among genotypes (P > 0.05) and showed relatively low heritability (h = 0.43).
Numerous studies have confirmed that the health and welfare of children is associated with parental educational attainment, with parental education level often a stronger predictor of children's health than family income, number of parents or size of the family (Zill, 1996).
Therefore, we tested a two-level hierarchical model with parent education and size of school grade cohort at a cluster level, and parental education at the individual level, using the KINDL School subscale as the outcome variable.
At all QTLs, alleles from the cultivated parent increase the size of each trait.
He seemed as pleased as the protesting parents with the size of the boycott.
