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Cross Validated : Recent Questions and Answers (Page 47)

Find answers to your questions about Cross Validated or help others by answering their Cross Validated questions.

When to test For Equality of Medians, and when Stochastic Equality?

In statistics, we are very often interested in investigating whether some score (let's say life satisfaction) tends to be bigger in one population (let's say rich people) compared to another...

Asked on 11/02/2021 by Julian Karch

1 answer

Why is it OK to model demographics as random effects in bayesian multilevel models?

In Bayesian multilevel models (with, say, people nested within congressional districts) I sometimes see individual level demographic variables like race modeled as random effects.So here’s a slightly simplifed example...

Asked on 11/02/2021 by Graham Wright

4 answer

Reading multilevel model syntax in intuitive ways in R (lme4)

Below, I have 3 lme4 longitudinal mixed-models. Throughout, y is the response variable, group is a binary indicator for "control" vs. "treatment", therapist (a clustering indicator), subjects (a clustering...

Asked on 11/02/2021 by rnorouzian

1 answer

Proof Law of Iterated Expectations

I'm reviewing the proof of the law of iterated expectations from Hansen's book of econometrics. I'd like to know why in the first line of the proof it integrates with...

Asked on 11/02/2021 by Juan Bromas

1 answer

Interpret Negative-Binomial mixed-model output in R

I am modelling the number of jobs in a year, with a random intercept to account for regional variation.How do I interpret the model output when using the model...

Asked on 11/02/2021 by user553480

1 answer

Choosing between Ordinal logistic Regression and Multiple linear regression

I have data in which the response variable (attitudes towards tourism) is scaled in nature ranging from -10 to +10 (calculated from the summation of scores of a few questions...

Asked on 11/02/2021 by kabindra shahi

2 answer

Does a significant interaction necessarily implies that at least one of the simple effects will be significant?

Considering that the interaction between two variables is significant, is it always the case that at least one of the two simple effects will be significant? If so, is there...

Asked on 11/02/2021

1 answer

proof of Cramer-Rao lower bound

I am trying to understand the proof for this theorem from the book Casella and Berger (2nd ed.) page 336. $W(X)$ if any estimator for samples...

Asked on 11/02/2021 by manav

0 answer

Modeling binomial outcomes with repeated measures

I'm looking at patterns of a particular injury within individuals and how they vary by age and sex. For each of 1365 individuals I have four locations each of which...

Asked on 11/02/2021 by mkn1

1 answer

How would econometricians answer the objections and recommendations raised by Chen and Pearl (2013)?

In their article, Chen and Pearl (2013), critically examined 6 econometric textbooks, among these the textbooks written by Wooldridge (2009) {the introductory book}, and Stock & Watson (2011)....

Asked on 11/02/2021 by ColorStatistics

2 answer

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