Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Top Questions

21 votes
8 answers
1k views

What are some good references on the history of ethics in statistics?

14 votes
3 answers
3k views

Statistics of lottery

8 votes
4 answers
971 views

Is it possible to have a multivariate random distribution with all its random variables (pair-wise) reverse correlated?

9 votes
4 answers
1k views

Does learning thorough statistical theory require learning analysis?

4 votes
2 answers
769 views

Why does my bootstrap sampling distribution no resemble the true sampling distribution?

9 votes
5 answers
1k views

Is it fair to say: "All Time Series data have some autocorrelation"?

11 votes
2 answers
921 views

Do fractional polynomials have any advantages over restricted cubic splines?

13 votes
1 answer
896 views

What research that suggested non-additive effects are rare (in any domain) is Frank Harrell referring to here?

8 votes
3 answers
749 views

Non-significant results when running Kruskal-Wallis, significant results when running Dwass-Steel-Critchlow-Flinger pairwise comparisons

5 votes
4 answers
2k views

Bell shape of student in a class has a height mean of 68 inches with 16% of them taller than 71 inches. What % of students are taller than 65 inches?

11 votes
2 answers
900 views

Philosophy behind sigma: is it measurement error?

5 votes
5 answers
830 views

Are p-values computed from the a priori or a posteriori sampling distribution?

6 votes
4 answers
727 views

From a theoretical standpoint, why is linear regression useful? [closed]

7 votes
2 answers
676 views

Is the expectation of a random vector multiplied by its transpose equal to the product of the expectation of the vector and that of the transpose

3 votes
3 answers
515 views

Does it make sense to talk of "multicollinearity" in the context of simple linear regression?

6 votes
4 answers
485 views

What is the information in an exact p-value?

9 votes
3 answers
375 views

For what reasons should regression models not adjust for variables comprising a composite score?

7 votes
3 answers
602 views

How to report my log transformed (+1) data?

6 votes
3 answers
467 views

Inference vs prediction terminology

10 votes
2 answers
290 views

What is the stopping criterion for adding nodes to a causal DAG?

3 votes
2 answers
428 views

Is logistic regression suitable for high frequency values?

6 votes
2 answers
425 views

What does reported "r" mean in the context of a t-test?

9 votes
1 answer
722 views

What is the specific name of this distribution?

8 votes
1 answer
334 views

Histograms and R squared correlation

3 votes
2 answers
283 views

Difficulty understanding Chi-Squared p-values in this case

4 votes
3 answers
441 views

Is this a correlation request?

3 votes
2 answers
341 views

Goodness-of-fit test for very skewed data [closed]

8 votes
1 answer
248 views

Is G*Power reliable for logistic regression? It does not seem to account for Hauck-Donner

6 votes
1 answer
390 views

What is a *likelihood ratio test* for a specific distribution, and how does it relate to hypothesis tests?

4 votes
2 answers
368 views

How to calculate sample size for measuring level of agreement between devices?

4 votes
3 answers
297 views

Probability threshold in ROC curve analyses

4 votes
2 answers
227 views

When to use fixed effects or multi level models in regression?

5 votes
3 answers
216 views

Are post-hoc adjusted analyses more valid than initial analyses?

4 votes
2 answers
215 views

Different results between ANOVA and Linear Mixed Effects

5 votes
2 answers
570 views

Why random noise is eliminable by infinite repetition of testing?

4 votes
3 answers
208 views

What type of pairwise test does emmeans run?

6 votes
2 answers
254 views

Comparing the mean of biological replicates that are not normally distributed, low N for replicates

4 votes
3 answers
410 views

How many p-value observations do you think are required before doing FDR correction

5 votes
1 answer
402 views

Show that the sample Mean is not complete

6 votes
2 answers
166 views

Causal Inference When Treatment Assignment is Fully-Known But Not Randomized

7 votes
1 answer
409 views

What is a good journal for submitting my article on a conjecture in theoretical statistics, re: ancillary complement for correlation?

11 votes
2 answers
334 views

Formulas, approximations, or bounds for $\mathbb{E}\left( \frac{X}{\lVert X \rVert} \right)$, $X\sim N(\mu, \Sigma)$?

7 votes
2 answers
231 views

Intuition and reasoning why LASSO can only select $n$ features when $n \ll p$

6 votes
2 answers
175 views

Multiple imputation of binary endpoint using underlying continuous variable

10 votes
3 answers
80 views

Can you legitimately claim to have used intention-to-treat analysis in a cluster randomised trial if recruitment occurs after randomisation?

6 votes
1 answer
277 views

Applying the Benjamini-Hochberg correction with a low number of comparisons

4 votes
3 answers
205 views

How to compare influence of outlier in regression model. ANOVA of two models in R

3 votes
2 answers
197 views

White's test interpretation


Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.