# Questions tagged [effect-size]

Effect size is "a measure of the strength of a phenomenon or a sample-based estimate of that quantity" [Wikipedia].

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### getting insignificant p-values but large effect size what should I do?

I used Qualtrics to conduct a survey and received 700+ responses. I also collected demographic data to disaggregate the data and observe any differences between groups. A couple questions used display ...
1 vote
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### R: How to calculate power to detect a change in mean beta reg.?

I'm interested in calculating the power to detect a change in my mean response variable by a certain effect size, but I'm not sure how to start. My Y variable is mean plant cover 0-100% cover (mean of ...
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### meta question: Understanding correlation vs. effect size

For some context: I've been looking at some meta-analyses on factors that explain happiness (well-being), because I wanted to check the happiness-claim of a certain philosophy and want to be happy in ...
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### Effect-Size Analysis: Cohen's D, Pearson's r, or something else?

I am trying to do an effect-size analysis on dam release's effects on downstream temperature. I have a large dataset of data loggers taking temperature readings at various sites downstream from the ...
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### Quantifying effect-size and correlation between two data frames

I am conducting an effect-size analysis on dam release and downstream temperature measurments. To do this, I am comparing the gauge temperature (the temperature of the water released from the dam) ...
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### Is this the correct way to go about determining correlation between upstream and downstream temperature?

I am new to stats and R in general, so please bear with me. I have been trying to find an answer to this question for about the past week and have spent a ton of hours researching but am still ...
1 vote
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### Two-Way repeated measures ANOVA with multiple data points per measurement

I would like to perform a study with physicians of three levels of experience. They shall perform a task under three different conditions. For each condition, the task is performed multiple times (e.g....
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1 vote
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### Why can we use RMSE as a proxy for the effect size of a VAR or Granger Causality?

My question here follows a previous question by me here: Is there a meaningful option to compute something like an effect size for Granger Causality?. In this previous question I asked for options to ...
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### Is there a meaningful option to compute something like an effect size for Granger Causality?

I am running Granger Causality (GC) analysis using statsmodels.tsa.stattools.grangercausalitytests between several time-series pairs. The time-series pairs used for ...
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