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Felix S

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correlation

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3 posts edited

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35 Answers

Votes Activity Newest

23

How to convert a frequency table into a vector of values?

Sep 15 '11 at 4:44

22

If A and B are correlated with C, why are A and B not necessarily correlated?

Feb 9 '12 at 13:27

22

How can I calculate the confidence interval of a mean in a non-normally distributed sample?

Oct 5 '11 at 5:01

13

What is a good index of the degree of violation of normality and what descriptive labels could be attached to that index?

Oct 7 '11 at 6:53

12

Working with correlation coefficients

Aug 31 '11 at 15:26

11

Is it allowed to use a 5% trimmed mean for analyzing data from a creativity task (quantity of ideas)?

Feb 13 '12 at 9:10

10

Ideas for “lab notebook” software?

Oct 12 '11 at 7:29

9

Estimate confidence interval of mean by bootstrap t method or simply by bootstrap?

Oct 17 '11 at 9:27

8

Generate a random variable with a defined correlation to an existing variable(s)

Aug 31 '11 at 17:51

8

Is it valid to include a baseline measure as control variable when testing the effect of an independent variable on change scores?

Sep 19 '11 at 11:43

7

Is Joel Spolsky's “Hunting of the Snark” post valid statistical content analysis?

Aug 7 '12 at 8:57

6

Which test to choose when the results from t-test and Wilcoxon test are different?

Jul 27 '12 at 7:33

6

How to report effect size measures r and r-squared and what is a non-technical explanation of them?

Sep 19 '11 at 11:55

5

Internal consistency reliability in item response theory models

Nov 12 '12 at 8:44

5

How to compute significant interaction estimates when main effect is not significant?

May 24 '12 at 7:57

5

Effect size interpretation

Nov 15 '11 at 8:25

5

Averages of averages (of averages, of averages…)

Sep 9 '11 at 7:43

4

How do you establish complete versus partial mediation in a simple mediational model?

Dec 13 '11 at 9:41

4

Exploratory factor analysis among items with different measurements

Aug 8 '12 at 7:50

4

Adding 2nd level variable into Multi-level Modelling in R

Jul 27 '12 at 7:37

4

Does having self and other report measures as predictors require dyad analysis?

May 16 '12 at 12:10

4

Pearson and Spearman correlations - how to determine if they are “similar”?

Sep 16 '11 at 6:43

3

Relationship between paired t test and simple mixed model

Jul 8 '14 at 11:54

3

Is there a better way to create variables with a certain correlation and one of them is heteroskedastic?

Nov 9 '12 at 13:45

3

What am I measuring when I apply a graded response model to the “Hunting of the Snark” dataset?

Aug 7 '12 at 9:28

3

When analyzing dyadic data, can unpaired cases be used in any part of the analysis?

May 16 '12 at 14:32

3

What inter-rater reliability test is best for continous data with multiple measures?

Oct 7 '11 at 11:16

3

Testing the difference of (some) quantile-Q between groups?

Sep 29 '11 at 13:03

2

How do I interpret data from a 2x2 experiment with a floor effect that causes it to lack any variation in one cell?

Jun 6 '12 at 7:09

2

Intersubject concordance for ratings vs rankings

Feb 22 '12 at 13:38

1

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