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Gala's user avatar
Gala
  • Member for 12 years, 7 months
  • Last seen more than a month ago
55 votes

Given true positive, false negative rates, can you calculate false positive, true negative?

43 votes
Accepted

Recall and precision in classification

25 votes

Minimum sample size for PCA or FA when the main goal is to estimate only few components?

24 votes
Accepted

Interpreting discrepancies between R and SPSS with exploratory factor analysis

23 votes
Accepted

Why does the bootstrapped correlation revolve around zero while the original correlation $\approx 0.52$?

23 votes

Precise meaning of and comparison between influential point, high leverage point, and outlier?

18 votes
Accepted

Why use ANOVA at all instead of jumping straight into post-hoc or planned comparisons tests?

15 votes
Accepted

Do I need a balanced sample (50% yes, 50% no) to run logistic regression?

14 votes

How and when to use the Bonferroni adjustment

14 votes
Accepted

Can p-values for Pearson's correlation test be computed just from correlation coefficient and sample size?

13 votes
Accepted

Where do the descriptors for Cronbach's alpha values come from (e.g., poor, excellent)?

11 votes
Accepted

What is the difference between a multi-label and a multi-class classification?

11 votes
Accepted

Meaning of p-value of logistic regression model variables

11 votes

Statistical meaning of pearsonr() output in Python

10 votes

Should covariates that are not statistically significant be 'kept in' when creating a model?

10 votes

Cronbach's alpha negative result

10 votes

Best practice when analysing pre-post treatment-control designs

10 votes
Accepted

How to expand data frame in R

10 votes

When is a repeated measures ANOVA preferred over a mixed-effects model?

9 votes

Suitable graph to visualize the spread of data

9 votes
Accepted

How do I interpret the Mann-Whitney U when using R's formula interface

8 votes
Accepted

What do we call multiple testing?

8 votes
Accepted

Meaning of “post hoc” multiple comparisons

7 votes
Accepted

Mann-Whitney or t-test to compare age and expenditure after clustering

7 votes
Accepted

Calculate precision and recall

7 votes
Accepted

How can reliability and validity of content analysis be quantified when there is only one person coding the data?

7 votes

Multiple t-tests vs. one-way ANOVA

6 votes

Should I treat these ordinal IVs as covariates or factors, in a regression?

6 votes
Accepted

Skewed but bell-shaped still considered as normal distribution for ANOVA?

6 votes

Data mining, domain knowledge and visualization

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