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hello, I have to choose the best way to model the relationship between years' experience and time taken to master a new skill. The curve seems to be quadratic, and a quadratic model does have a very high r^2 (over .90). However, as is common in polynomial regression, there is a high degree of...

Hi there, I have a 2x4 fully repeated measures design in which participants had to correctly state whether a target was absent or present in a visual field task, with different numbers of distractors. the first independent variable is target presence/absence the second independent variable...

Hi there, I am struggling to choose which form of ANOVA to use for a problem I have. there is a court case where participants have to decide on a penalty for a criminal. criminal attractiveness was manipulated (no photo provided, unattractive photo, attractive photo) and whether the...

Hi there, I am quite confused about how I would go about locating an effect in a 2-way repeated measures ANOVA. I have 10 participants and for each I have there response times when they carried out a target detection task (where they had to say whether or not a target was present) for when...