Re: Interactions binary logistic regression

Posted by PhD student on Dec 15, 2016; 5:22pm
URL: http://spssx-discussion.165.s1.nabble.com/Interactions-binary-logistic-regression-tp5733602p5733611.html

1) Two groups (got that) and each participant completed all 8 trials? Or something else? This element is important! Yes, exactly
2) In each trial participants selected either a risky option or a safe option. The dichotomous DV. Yes
3) A trial was formulated as a gain or as a loss and as low risk or high risk. Four combinations. I was not clear enought, the level of risk was 20% chances of winning, 40% 60% and 80%, but authors recommend to categorize 20 and 40% as low and 60 and 80% as high
4) Each combination was replicated twice. Therefore, each combination was presented once.

If each participant did all eight trials, you have a repeated measures design. Just suppose the DV were continuous, how would you set up the analysis?  If my DV was continuous, I would use ANOVA. In my speciality, data are classically treated with ANOVA, but I am not sure that is the most appropriate technique due to the dichotomous DV