Recent content by Da5Ax

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    Effect size for polynomial contrasts

    I mean something similar to eta square or Cohen's d.
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    Effect size for polynomial contrasts

    Is there a way to compute and effect size for polynomial contrasts (quadratic contrast, to be more precise)? Thank you!
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    Polynomial (quadratic) contrasts: clarifications & inverted-U

    Hello everyone, I am trying to see how the motor time of a response to a stimulus (DV: quantitative, continuous) evolves based on difficulty level of the task (IV: 8 levels, categorical). My hypothesis is that motor time will increase, then decrease (inverted U shape). I conducted a RM ANOVA...