In cumulative mixed effects model(CLMM) both the items of a level column are not being picked
I’m a PhD student in Applied Linguistics and I’m new to using RStudio for my research. I’m working on a project that involves survey data, specifically using a 4-point Likert scale. My study includes four conditions, each with two levels: Opaque and Transparent.
SPSS (simple regression and moderated regression analysis)
At this moment, I’m doing my analysis for my master thesis. I tried to analyse my data with SPSS, but I got stuck with it. I’m using 1 dependent variable, 1 independent variable, 2 moderators, and several control variables.