User user45765

12 votes

4 answers

2k views

Why do we never learn cross validation in regular statistical textbooks?

asked Sep 27, 2021 at 22:12

5 votes

1 answer

50 views

What does it mean "analyze sample time series data when only a single series is available"?

time-series autocorrelation stochastic-processes autoregressive

asked Jun 13, 2020 at 2:04

5 votes

4 answers

266 views

Testing Hypothesis with different alternatives

hypothesis-testing statistical-significance inference

asked Aug 7, 2020 at 0:37

4 votes

1 answer

77 views

Does one need to test independence of variables first?

hypothesis-testing mathematical-statistics variance mean inference

asked Feb 8, 2021 at 18:36

3 votes

1 answer

412 views

Shapiro-Wilk test on transformed data

hypothesis-testing normal-distribution normality-assumption shapiro-wilk-test

asked Jan 27, 2021 at 11:57

3 votes

1 answer

61 views

What is censoring distribution and how to get it from accruing period, follow-up period and stopping time of trial?

mathematical-statistics survival biostatistics clinical-trials proportional-hazards

asked Oct 5, 2021 at 18:21

3 votes

1 answer

171 views

Should one adjust p-values for multiple testing corrections in research?

hypothesis-testing mathematical-statistics p-value multiple-comparisons

asked Dec 12, 2021 at 23:47

3 votes

1 answer

83 views

data peeking and increasing sample size

hypothesis-testing mathematical-statistics statistical-significance experiment-design

asked Jan 10 at 18:34

3 votes

1 answer

70 views

When do we do sensitivity analysis in biostat and how do we do it?

references biostatistics observational-study sensitivity-analysis

asked Jan 11 at 19:24

3 votes

1 answer

50 views

Is it possible that GEE and mixed effect GLM give contradicting answers? If so, which one should be trusted?

regression generalized-linear-model model-selection model generalized-estimating-equations

asked Jun 9 at 18:06

2 votes

0 answers

13 views

Sample size planning method differs from analysis method

regression hypothesis-testing nonparametric experiment-design clinical-trials

asked 15 hours ago

2 votes

1 answer

39 views

Is trial with accrual period left truncated?

mathematical-statistics survival biostatistics clinical-trials truncation

asked Oct 4, 2021 at 15:13

2 votes

1 answer

22 views

How many tests can one do in a medical publication?

regression hypothesis-testing type-i-and-ii-errors

asked Dec 4, 2021 at 0:11

2 votes

0 answers

27 views

What is cohort effect in general?

mathematical-statistics inference panel-data biostatistics case-cohort

asked Oct 15, 2021 at 15:23

2 votes

0 answers

38 views

When to choose mixed effect model over marginal model?

regression mixed-model generalized-linear-model panel-data marginal-model

asked Oct 27, 2021 at 14:48

2 votes

0 answers

58 views

Why it is not possible to estimate $\beta$ in binary response model with links other than logit? [duplicate]

logistic mathematical-statistics generalized-linear-model categorical-data

asked Sep 10, 2021 at 17:52

1 vote

1 answer

36 views

Why "run the filter longer than needed and remove the initial values" will solve the issue of recursive solving equations?

time-series stochastic-processes filter differential-equations

asked Jun 11, 2020 at 3:16

1 vote

0 answers

21 views

Why duality of confidence interval and hypothesis testing fails in random effect test for presence random effect?

regression hypothesis-testing mathematical-statistics mixed-model confidence-interval

asked Nov 10, 2021 at 19:42

1 vote

0 answers

16 views

How to test censoring patterns of two samples agree?

hypothesis-testing distributions survival censoring equivalence

asked Jul 7, 2021 at 22:20

1 vote

1 answer

91 views

Why cox.zph tests by sums of coefficient and scaled Schoenfeld residuals?

mathematical-statistics inference survival

asked Aug 1, 2021 at 15:56

1 vote

1 answer

30 views

Estimator of failure by cause j at time t

mathematical-statistics estimation inference survival estimators

asked Aug 4, 2021 at 17:38

1 vote

2 answers

343 views

Looking for non causal time series in real life

time-series

asked Jun 14, 2020 at 1:55

1 vote

0 answers

11 views

circularness of imputing draws via regression in MCAR

regression bayesian mathematical-statistics simulation missing-data

asked Dec 23, 2021 at 15:28

1 vote

0 answers

75 views

Why logit transformed binomial proportion is approximately normal?

bayesian mathematical-statistics normal-distribution posterior

asked Dec 31, 2021 at 16:19

1 vote

1 answer

94 views

Why do we call an assignment mechanism unconfounded assignment mechanism?

mathematical-statistics missing-data causality definition confounding

asked Jan 24 at 18:06

1 vote

2 answers

46 views

Can one perform Bernoulli trial by restarting trial if everyone is assigned control or treatment?

probability mathematical-statistics inference causality random-generation

asked Jan 24 at 19:50

1 vote

0 answers

18 views

preference between completely randomized or stratified/paired randomized design under covariate not predicting outcomes?

mathematical-statistics experiment-design statistical-power causality random-allocation

asked Jan 25 at 19:56

1 vote

1 answer

113 views

How do we check MCAR, MAR in general?

mathematical-statistics missing-data survey data-imputation multiple-imputation

asked Feb 12 at 18:17

1 vote

0 answers

23 views

Where is degree freedom correction coming from in causal inference variance estimator?

mathematical-statistics variance causality

asked Mar 1 at 20:43

1 vote

0 answers

19 views

"If true propensity score is constant, then the superpopulation covariate distributions are identical in two treatment groups"?

mathematical-statistics causality conditional-expectation propensity-scores

asked Mar 8 at 19:51

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47 Questions

Why do we never learn cross validation in regular statistical textbooks?

What does it mean "analyze sample time series data when only a single series is available"?

Testing Hypothesis with different alternatives

Does one need to test independence of variables first?

Shapiro-Wilk test on transformed data

What is censoring distribution and how to get it from accruing period, follow-up period and stopping time of trial?

Should one adjust p-values for multiple testing corrections in research?

data peeking and increasing sample size

When do we do sensitivity analysis in biostat and how do we do it?

Is it possible that GEE and mixed effect GLM give contradicting answers? If so, which one should be trusted?

Sample size planning method differs from analysis method

Is trial with accrual period left truncated?

How many tests can one do in a medical publication?

What is cohort effect in general?

When to choose mixed effect model over marginal model?

Why it is not possible to estimate $\beta$ in binary response model with links other than logit? [duplicate]

Why "run the filter longer than needed and remove the initial values" will solve the issue of recursive solving equations?

Why duality of confidence interval and hypothesis testing fails in random effect test for presence random effect?

How to test censoring patterns of two samples agree?

Why cox.zph tests by sums of coefficient and scaled Schoenfeld residuals?

Estimator of failure by cause j at time t

Looking for non causal time series in real life

circularness of imputing draws via regression in MCAR

Why logit transformed binomial proportion is approximately normal?

Why do we call an assignment mechanism unconfounded assignment mechanism?

Can one perform Bernoulli trial by restarting trial if everyone is assigned control or treatment?

preference between completely randomized or stratified/paired randomized design under covariate not predicting outcomes?

How do we check MCAR, MAR in general?

Where is degree freedom correction coming from in causal inference variance estimator?

"If true propensity score is constant, then the superpopulation covariate distributions are identical in two treatment groups"?