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BenP's user avatar
BenP's user avatar
BenP
  • Member for 5 years, 1 month
  • Last seen this week
13 votes
Accepted

Dropping outlier from linear regression model reducing adjusted R^2

6 votes
Accepted

Why are 1/SE or 1/variance commonly used as weights in regressions?

6 votes
Accepted

Interpretation of logistic regression coefficient

6 votes
Accepted

Paired t-test of two algorithms

5 votes
Accepted

Deriving Distributions of Linear Regression

4 votes
Accepted

Random effect models: Understanding within, between and contextual effect

4 votes

In linear regression, do the errors overall have a normal distribution, or do the errors at each value of x have a normal distribution?

3 votes

Calculate $R^2$ given estimated coefficients and $N$ only

3 votes
Accepted

r mixed model unstructured and ar1 covariance matrices

3 votes
Accepted

Why estimated population variance differs from estimated $\sigma^2 + \tau^2$ in this random effects ANOVA?

3 votes

Multilevel MIXED Linear Regression with pseudo-repeats: Why designate "Repeated' variables, while "Subject ID" already identifies all repeats?

3 votes

natural splines in R with ns( )

3 votes
Accepted

Interpretation dummy variables Cox PH model

3 votes

Why $(y-Xb)^T(y-Xb)\ne y^Ty-b^TX^Ty$, where $b=(X^TX)^{-1}X^Ty$ is the least squares estimate?

3 votes

What analysis to use for one quantitative independent variable and multiple quantitative dependent variables?

2 votes

OLS Residuals sum to zero for each submodel for a model with categorical variable?

2 votes

Prove that OLS estimated coefficients are independent from other variables

2 votes

Mixed effect model, number of random effects and fixed effects

2 votes

What does it mean that BLUP is unbiased, given a linear two-level model?

2 votes

Chi square test of independence with year as a categorical variable?

2 votes

Is $E((\Sigma_i^n u_i)^2) = 0$ or $n\sigma^2$ (in OLS)?

2 votes

How to compare cases and controls after adjusting for age differences?

2 votes

Adding a confounder `Factor` vs. subtracting within-level mean

2 votes

Why does variance decomposition not exist in logistic regression?

2 votes

Can't get my head around how random effects affect interpretation of model coefficients

2 votes
Accepted

What is the difference between a one sample t test of the difference between two groups versus a two sample t test comparing the two groups?

2 votes

Mixed models - interactions or individual regression

2 votes

Large increase in joint significance when introducing robust covariance matrix estimator

1 vote

mixed effect model in R with unstructured covariance

1 vote

proper test for indifference of two groups