hplieninger
  • Member for 8 years, 7 months
  • Last seen more than a month ago
9 answers
364 votes
712k views
366 bookmarks
What is the difference between fixed effect, random effect and mixed effect models?
8 answers
121 votes
64k views
118 bookmarks
Bias and variance in leave-one-out vs K-fold cross validation
4 answers
94 votes
192k views
82 bookmarks
Does the variance of a sum equal the sum of the variances?
5 answers
89 votes
302k views
51 bookmarks
How to 'sum' a standard deviation?
24 answers
88 votes
10k views
62 bookmarks
Rules of thumb for "modern" statistics
3 answers
86 votes
40k views
60 bookmarks
Shape of confidence interval for predicted values in linear regression
4 answers
62 votes
108k views
38 bookmarks
Under what conditions should Likert scales be used as ordinal or interval data?
2 answers
59 votes
54k views
55 bookmarks
What is the variance of the weighted mixture of two gaussians?
6 answers
59 votes
51k views
58 bookmarks
Is random forest a boosting algorithm?
8 answers
44 votes
43k views
36 bookmarks
Is it valid to include a baseline measure as control variable when testing the effect of an independent variable on change scores?
7 answers
40 votes
18k views
30 bookmarks
Combining probabilities/information from different sources
5 answers
30 votes
5k views
18 bookmarks
Why does my bootstrap interval have terrible coverage?
4 answers
28 votes
22k views
20 bookmarks
Importance of predictors in multiple regression: Partial $R^2$ vs. standardized coefficients
1 answers
19 votes
1k views
19 bookmarks
Cheat Sheet ANOVA Alphabet Soup & Regression Equivalents
3 answers
15 votes
525 views
10 bookmarks
What's a good approach to teaching R in a computer lab?
2 answers
9 votes
398 views
3 bookmarks
Are most published correlations in social sciences untrustworthy and what is to be done about it?
2 answers
6 votes
3k views
4 bookmarks
Longitudinal item response theory models in R
1 answers
6 votes
243 views
1 bookmarks
BIC in Item Response Theory Models: Using log(N) vs log(N*I) as a weight
2 answers
6 votes
8k views
6 bookmarks
Reliability in IRT Style
1 answers
5 votes
1k views
2 bookmarks
Are principal components reflective, formative, both, or neither?
2 answers
5 votes
2k views
2 bookmarks
Combining ratings from multiple raters of different accuracy
0 answers
5 votes
482 views
3 bookmarks
Is it possible to get a prediction interval for logistic regression via a latent variable?
0 answers
1 votes
586 views
3 bookmarks
Multilevel Model in Matrix Form