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Schoolchildren questions for statisticians

It must be that time of year because I was asked to speak at two different schools in downtown Los Angeles this week, one elementary school and one middle school.  The Perfect Jennifer probably won the coolest teacher award for getting her younger sister, a world champion in mixed martial arts and subject of a…

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A quick introduction to interpretation of Exploratory Factor Analysis: Mplus Example

Last week I wrote a bit about how to get an exploratory factor analysis using Mplus. The question now, is what does that output MEAN ? First, you just get some information on the programming statements or defaults that produced your output: INPUT READING TERMINATED NORMALLY Exploratory Factor Analysis ; SUMMARY OF ANALYSIS Number of…

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Interpreting Confirmatory Factor Analysis Output from Mplus

Being able to find SPSS in the start menu does not qualify you to run a multi-nomial logistic regression. This is the kind of comment statisticians find funny that leaves other people scratching their heads. The point is that it’s not that difficult to get output for some fairly complex statistical procedures. Let’s start with…

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Four Things Students Should Have Learned in School but Didn’t

Here are four more of Dr. De Mars 55 things I have learned in (almost) 55 years, and that is that there are four thing students should have learned in school but often didn’t. 1. Say what you mean. I don’t know who those teachers are who reinforce students for using longer words, longer sentences…