Characteristics of treatment responders
HL
SECONDARY
Initial analyses will be similar to those described above for Aim 1 only focusing on indicators of SDT (autonomy, competence, relatedness) and health literacy (HL) to assess change over time in these measures and whether those rates of change differ between intervention groups. In the next set of analyses, key outcomes include the primary and secondary outcomes. For SDT/HL measures that show no change over time for either intervention group and for the other characteristics only measured once (demographics), repeated measures, random effects models, will be used to assess how they are associated with change in trial outcomes (interaction between assessment and SDT indicators or other characteristics). Further interactions with intervention group will also be considered to evaluate differences in the association with change between groups. For SDT/HL measures that do show change, we will use an extension of the repeated measures, random effects called simultaneous modeling [