Conscientiousness elevated risk (analyses of the combinations of high Neuroticism with low Extraversion or low Conscientiousness were construed as hypothesis-testing). In the first block, we entered all the covariates. In the second block, we entered four dummy-coded (0 or 1) variables that indicated participants’ personality style for each pair of domains (i.e., high on both domains, low on both domains, high on the first, low on the second; low on the first, high on the second). Participants not classified in terms of a style received a score of 0 on all four dummy-coded variables. Odds ratios thus show the likelihood of depression for participants who are one of the four styles compared to all other participants. In our second set of analyses, we take a more clinical approach and ask whether individuals who score beyond a specified threshold on two personality traits are more likely to develop depression. The threshold is 1/2 SD above and/or below the mean in the current sample.
