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    Effect size in regression

    Hi everyone, I am reading an article at which authors used an effect size that it's totally new to me and I do not know how to interpret it. I would appreciate if anyone could explain its meaning or provide any reference about its interpretation. Below, I paste some sentences from the original...
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    Local association measures

    Hi everyone, I have read that there are local measures of association to be used when wanting to conduct a finer-grain analysis of an X-Y association (Grissom and Kim, pages 101-102). However, this comment is framed in the context of two continuous variables and I wondered whether these local...
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    How to summarize a pattern of correlations?

    Hi, I have performed a small memory study at which participants could commit two types of errors (false positives and false negatives; F+ and F-) in four different stimuli categories. I have observed that the two kinds of errors (F+ and F-) for two stimuli categories show a reciprocal pattern...
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    reporting chi-square in 2x3 contingency table

    Hi everyone, I am conducting an experiment and I have two groups of participants (controls/ treated; 50 each). For each participant, I performed 40 measures with 3 possible outcomes (A, B, C) and recorded the accumulated frequencies (for example: control1: 10A, 20B, 10C; Control 2: 20A, 10B...
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    how to automatically repeat the same analysis

    Hi everyone, I am conducting a study and I have to perform over 200 multiple regression analyses with the same predictors (2, one dichotomic and one continuous) but with different dependent variables. Of course, this might just be done manually, but it might be too time-consuming and prone to...
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    Averaging cohen d

    Hi everyone, I have performed a study comparing the means of two groups (placebo vs. control) in a set of dependent variables. I have performed this comparison using raw (uncorrected data) and different corrections. Some of the observed differences vary depending on which correction was...
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    Benjamini, Krieger and Yekutieli multiple comparisons correction

    Hi, I am reporting the number of statistically significant differences found on a series of 110 t tests with and without applying the Benjamini, Krieger and Yekutieli multiple comparisons correction method. I have also performed a series of 110 linear regressions on the same DVs and I would...
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    Estimated Values after ANCOVA in SPSS

    Hi, I am conducting a one-way ANCOVA with a fixed factor (group) and a continuous co-variate (height). I compared the estimated marginal means with the means for saved, predicted values, and I found that the sets of means are not equal. In...
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    HELP NEEDED (comparing frequencies among two groups)

    Hi everyone, I would like to analyze whether two slightly differently sized (N=45 and N=55) groups of participants differ in their observed frequencies for 4 types of "events". The events are errors in a memory/ recognition task for 4 different kind of stimuli (that is, I asked participants to...
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    Cohen d and Z scores

    Hi everyone, I should start by saying that I posted the same question that I will expose here on the psychological research forum. However, as I did not receive any answer, I wonder whether I misplaced my post. I apologize if this kind of repetition contravenes any of the rules of Talk...