Tag: hypothesis-testing

237 Is normality testing 'essentially useless'? 2010-09-08T17:47:21.820

198 What is the meaning of p values and t values in statistical tests? 2010-07-19T19:28:44.903

132 Is Facebook coming to an end? 2014-01-23T16:58:42.883

111 Are large data sets inappropriate for hypothesis testing? 2010-09-09T18:21:30.200

89 Is this really how p-values work? Can a million research papers per year be based on pure randomness? 2015-07-19T10:25:05.680

86 How much do we know about p-hacking "in the wild"? 2016-03-09T13:14:57.287

82 ASA discusses limitations of $p$-values - what are the alternatives? 2016-03-08T08:32:23.927

76 What are examples where a "naive bootstrap" fails? 2011-04-18T05:44:33.810

74 Regarding p-values, why 1% and 5%? Why not 6% or 10%? 2013-04-10T10:20:50.907

74 How to choose between t-test or non-parametric test e.g. Wilcoxon in small samples 2014-10-29T03:02:19.667

69 A psychology journal banned p-values and confidence intervals; is it indeed wise to stop using them? 2015-02-25T19:01:23.347

63 40,000 neuroscience papers on fMRI might be wrong 2016-07-25T17:09:30.523

62 Is this the solution to the p-value problem? 2016-03-31T22:14:42.130

61 References containing arguments against null hypothesis significance testing? 2011-05-08T16:09:04.040

61 What is a good, convincing example in which p-values are useful? 2016-03-11T11:44:59.917

57 Why does collecting data until obtaining a significant result increase the Type I error rate? 2017-10-26T17:29:07.963

55 When to use Fisher and Neyman-Pearson framework? 2012-02-20T11:02:11.077

55 Why would parametric statistics ever be preferred over nonparametric? 2015-07-30T11:48:44.030

54 What is the difference between a "nested" and a "non-nested" model? 2010-11-19T11:32:02.027

54 Why continue to teach and use hypothesis testing (when confidence intervals are available)? 2011-02-07T18:05:50.610

53 Why is it possible to get significant F statistic (p<.001) but non-significant regressor t-tests? 2010-10-13T09:40:17.420

53 Explain the xkcd jelly bean comic: What makes it funny? 2014-02-27T00:34:29.917

49 Do we have a problem of "pity upvotes"? 2011-06-01T01:57:42.547

48 Is the "hybrid" between Fisher and Neyman-Pearson approaches to statistical testing really an "incoherent mishmash"? 2014-08-21T12:54:28.113

48 Cumming (2008) claims that distribution of p-values obtained in replications depends only on the original p-value. How can it be true? 2016-12-07T21:06:30.123

48 If we fail to reject the null hypothesis in a large study, isn't it evidence for the null? 2017-04-25T04:55:49.797

42 Correct spelling (capitalization, italicization, hyphenation) of "p-value"? 2010-07-28T04:08:23.973

41 Motivation for Kolmogorov distance between distributions 2010-07-21T13:39:06.783

41 Why is multiple comparison a problem? 2010-08-09T18:03:54.360

41 How to obtain the p-value (check significance) of an effect in a lme4 mixed model? 2012-02-16T19:02:04.460

41 Why is "statistically significant" not enough? 2013-12-11T04:43:39.983

40 Is chi-squared always a one-sided test? 2012-02-06T14:48:19.933

40 How do I test that two continuous variables are independent? 2013-10-23T23:54:16.613

39 Why does frequentist hypothesis testing become biased towards rejecting the null hypothesis with sufficiently large samples? 2014-07-22T20:06:58.397

38 Statistical inference when the sample "is" the population 2010-09-13T18:35:23.810

37 When combining p-values, why not just averaging? 2013-12-04T23:11:57.667

36 Why do statisticians say a non-significant result means "you can't reject the null" as opposed to accepting the null hypothesis? 2014-02-08T20:55:03.707

35 How can I test if given samples are taken from a Poisson distribution? 2010-08-03T13:54:19.897

35 How to test hypothesis of no group differences? 2010-09-24T05:24:00.240

35 What is the connection between credible regions and Bayesian hypothesis tests? 2012-07-05T12:20:33.057

34 Effect size as the hypothesis for significance testing 2012-02-24T16:46:03.667

33 Is it possible to prove a null hypothesis? 2011-01-13T16:46:34.553

33 Justification of one-tailed hypothesis testing 2011-03-03T19:35:51.870

33 Significance of coefficients in linear regression: significant t-test vs non-significant F-statistic 2012-03-15T19:56:37.380

33 Understanding p-value 2012-11-30T13:14:01.770

33 Why is the null hypothesis often sought to be rejected? 2015-12-04T14:44:24.337

32 Is it possible to change a hypothesis to match observed data (aka fishing expedition) and avoid an increase in Type I errors? 2014-05-27T09:45:45.490

32 Is p-value essentially useless and dangerous to use? 2015-01-25T20:01:17.033

31 Are there statistical lessons from the "Bible Code" episode 2011-01-17T09:18:09.130

31 Bootstrap vs. permutation hypotheis testing 2011-12-25T01:03:10.000

31 How to interpret type I, type II, and type III ANOVA and MANOVA? 2012-01-01T18:28:11.283

31 Interpretation of p-value in hypothesis testing 2013-01-02T22:57:41.403

31 Testing equality of coefficients from two different regressions 2014-04-12T12:51:14.603

30 What are some useful guidelines for GBM parameters? 2012-04-03T03:27:15.120

30 Recommendation for peer-reviewed open-source journal? 2012-05-09T17:29:24.487

30 Why does basic hypothesis testing focus on the mean and not on the median? 2017-10-08T07:58:32.037

28 Test for finite variance? 2010-09-09T06:01:05.300

28 How can I test the fairness of a d20? 2010-09-30T13:04:31.537

28 Bayesian equivalent of two sample t-test? 2014-12-26T19:06:05.300

28 Has the journal Science endorsed the Garden of Forking Pathes Analyses? 2016-07-11T14:31:57.817

27 Why are lower p-values not more evidence against the null? Arguments from Johansson 2011 2013-07-06T07:45:59.513

27 Teaching first Bayesian or frequentist statistics 2017-01-25T09:59:14.440

26 Are smaller p-values more convincing? 2015-02-14T18:35:41.007

26 The abundance of P values in absence of a hypothesis 2015-03-19T21:57:48.997

26 Distinguishing between two groups in statistics and machine learning: hypothesis test vs. classification vs. clustering 2017-02-18T16:27:38.220

25 Ziliak (2011) opposes the use of p-values and mentions some alternatives; what are they? 2011-11-03T18:09:19.700

25 Origin of "5$\sigma$" threshold for accepting evidence in particle physics? 2012-07-03T19:45:43.157

25 Why do these statements not follow logically from a 95% CI for the mean? 2014-04-24T12:08:04.657

25 Why do my p-values differ between logistic regression output, chi-squared test, and the confidence interval for the OR? 2015-04-02T19:25:52.823

24 Is Kolmogorov-Smirnov test valid with discrete distributions? 2010-07-30T17:00:57.573

24 Is it meaningful to test for normality with a very small sample size (e.g., n = 6)? 2011-08-08T11:06:04.043

24 Relation between confidence interval and testing statistical hypothesis for t-test 2011-11-10T21:49:31.440

24 Distribution hypothesis testing - what is the point of doing it if you can't "accept" your null hypothesis? 2014-09-02T05:16:21.893

24 Is rejecting the hypothesis using p-value equivalent to hypothesis not belonging to the confidence interval? 2015-08-28T07:20:33.240

24 Have the reports of the death of the t-test been greatly exaggerated? 2015-11-25T01:27:06.737

24 Why aren't multiple hypothesis corrections applied to all experiments since the dawn of time? 2016-04-11T07:24:57.820

23 Measures of similarity or distance between two covariance matrices 2011-08-23T02:40:04.457

23 t-test for partially paired and partially unpaired data 2012-04-05T21:54:16.657

22 Checking if two Poisson samples have the same mean 2011-04-14T14:26:53.683

22 Computing p-value using bootstrap with R 2012-01-07T04:45:25.230

22 What exactly does a non-parametric test accomplish & What do you do with the results? 2013-08-12T21:46:04.343

22 Testing for autocorrelation: Ljung-Box versus Breusch-Godfrey 2015-04-23T19:24:41.793

21 Multiple hypothesis testing correction with Benjamini-Hochberg, p-values or q-values? 2010-07-28T03:54:56.447

21 What is the difference between confidence intervals and hypothesis testing? 2011-10-01T04:40:51.673

21 Test for bimodal distribution 2013-02-28T17:58:31.253

21 Choice between Type-I, Type-II, or Type-III ANOVA 2013-05-29T16:57:54.203

21 How to get an "overall" p-value and effect size for a categorical factor in a mixed model (lme4)? 2014-04-24T15:35:24.527

21 Now that I've rejected the null hypothesis what's next? 2014-05-27T23:44:09.607

20 Is my weatherman accurate? 2010-08-19T05:56:06.483

20 Why is the null hypothesis always a point value rather than a range in hypothesis testing? 2011-03-12T09:27:27.410

20 Testing significance of peaks in spectral density 2011-06-21T10:20:36.630

20 Which one is the null hypothesis? Conflict between science theory, logic and statistics? 2011-08-03T10:22:32.813

20 How should mixed effects models be compared and or validated? 2012-02-28T03:33:59.977

20 "Investigator intention" and thresholds/p-values 2012-04-11T08:11:10.620

20 Is a priori power analysis essentially useless? 2014-02-24T18:06:09.357

20 What's wrong with Bonferroni adjustments? 2014-10-16T20:43:51.373

20 what are the assumptions of permutation test? 2014-12-17T16:44:01.890

20 If multiple comparisons are "planned", do you still need to correct for multiple comparisons? 2017-01-10T09:56:35.353

20 Given big enough sample size, a test will always show significant result unless the true effect size is exactly zero. Why? 2018-01-19T01:44:47.960