C. Pieters

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bio website twitter.com/ConstantPieters location Netherlands age 23 member for 1 year, 8 months seen Aug 4 at 12:32 profile views 14

Student Marketing Research. Interests include: music, computers, social media (marketing), internet marketing, quantitative marketing, science, statistics and modeling, sports (table tennis), blogging, tech and mobile.

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 Aug1 awarded Yearling Apr12 awarded Popular Question Jan16 awarded Nice Answer Dec16 awarded Commentator Dec16 comment Examples for teaching: Correlation does not mean causation The first one is really cool. May29 asked Panel-data exploratory data analysis May10 comment Finding outliers without assuming normal distribution What I also see sometimes is that researchers drop the top and bottom X % of their observations to reduce the influence of extreme cases. But I'm unsure whether I agree with it, it's quite arbitrary isn't it? May8 comment Panel data descriptives, plots and 'feel for the data' Thanks for your suggestion. Now, this code is running for over half an hour now, is this because of the size of my data or is there a little mistake in the code? I already tried to look up some stuff about the code but I'm not that skilled with the STATA Syntax yet. May7 asked Panel data descriptives, plots and 'feel for the data' May2 answered Introductory book for multivariate statistics May2 comment How to score Likert scales and test a hypothesis relating two variables? Exactly, the weights become less arbitrary and you can look at the factor loadings which question explains a lot of variation. May1 comment What are chunk tests? For the sake of clarity, I think I was taught this as a "Partial F-test" where you test 2 or more variables for joint significance. Or whether a subset of variables in your model improves over the more restricted model (just like a likelihood ratio test). Am I correct? May1 answered How to score Likert scales and test a hypothesis relating two variables? May1 comment How well does the normal distribution perform? I think that's what the parameters (mean, stdev) determine. For example a low stdev (imposing a very skinny PDF) may impose a smaller likelihood of extreme values. Please others, correct me if I'm wrong. Apr30 answered Whether to include $x$ and $x^2$ in regression model examining diminishing returns when only $x^2$ is significant? Apr29 awarded Scholar Apr29 accepted Inconsistency in mixed-effects model estimation results (Stata and SPSS) Apr29 comment Inconsistency in mixed-effects model estimation results (Stata and SPSS) Thank you for the answer! So simple yet so frustrating. Especially because the labels Std. Err. and Std. Error correspond. Also, the fixed effects results are identical when you look at the numbers. Apr29 comment Inconsistency in mixed-effects model estimation results (Stata and SPSS) Thanks for the replies so far. I added the outputs. Apr29 awarded Editor