## MANOVA from beginning to end: Reliability

Where is the Multivariate Analysis of Variance ? You promised there would be MANOVA ! Now we’re in the third post! First there was recoding of variables. Then, there was creating scales.  Now, we’re looking at reliability. Patience is a virtue. Before we get to doing a MANOVA we want to be sure that our…

## MANOVA from beginning to end : Creating the scales

Last time, we saw how to recode variables to score answers correct or incorrect, on a rating scale and weighted by importance. Today, we’re going to look at creating some scales from those variables because for reasons I’m sure I have written about at some point in the past, single items are usually not very…

## MANOVA beginning to end: Recoding Data is Part of the Process

Other people want to go see the new Wonder Woman movie. I’ve been wanting to talk about MANOVA, but first, we need some decent dependent and independent measures. I have the India Human Development Survey data on over 39,000 women and my hypothesis is that education is related to women’s rights’ issues, especially autonomy, health…

## An Introduction to Repeated Measures ANOVA

I’m teaching a course on multivariate statistics and for some of the students it’s been a minute since their last inferential statistics course. So, I have been doing a few videos here and there to refresh, for example, what is a repeated measures ANOVA and why you might want to do it.   Sometimes I…

## Using Characterize Data Task to Inspect Data Quality

Since I had done a few youtube videos on using SAS Studio, I thought I would add them to my blog. This one uses the characterize data task to take a quick look at the data, but I suppose you could have guessed that from the title.   Support my day job AND get smarter….

## Pointy, Clicky Propensity Score Matching With SAS

Hopefully, you have read my Beginner’s Guide to Propensity Score matching or through some other means become aware of what the hell propensity score matching is. Okay, fine, how do you get those propensity scores? Think about this carefully for a moment, if you are using quintiles, you are matching people by which group they…

## A Beginner’s Guide to Propensity Score Matching

One advantage of writing this blog for almost a decade is that there are a lots of topics I have already covered. However, software moving at the speed that it does, there are always updates. So, today I’m going to recycle a couple of older posts that introduce you to propensity score matching. Then, tomorrow,…

## SAS vs SPSS for Teaching Multivariate Analysis in Social Sciences

I have to choose between either SAS or SPSS for a new course in multivariate statistics. You can take it up with the university if you like, but  these are my only two options, in part because the course is starting soon. I need to decide in a few days which way to go. Here…

## How to compute a standard deviation and control chart when you don’t have raw data

It ought to be easier than this and perhaps I could have found an easier way if I had more patience than the average ant or very young infant. However, I don’t. Here was the problem. I wanted control charts for two different variables, satisfaction with care, surveyed at discharge, and satisfaction with care 3…

## Charts with CDC Data- A step by step example

Perhaps you have watched the Socrata videos on how to do data visualization with government data sets and it is still not working for you. Here is a step by step example of answering a simple question.   Is the prevalence of alcohol use among youth higher in rural states than urban ones? You can…