Athletic Competition: The Gift that Keeps on Giving

I've been sick the last few days and it has sucked, particularly because this is a very busy week for me. We had the last day of judo practice at Gompers Middle School on Friday followed by the last practice of the school year on Saturday. After having the privilege of teaching these really good kids for a year, or two or three, many of them I won't see again, so there was no way I wasn't going to show up ....more

How to write a statistical analysis paper: Step 4

We’ve looked at data on Body Mass Index (BMI) by race. Now let’s take a look at our sample another way. Instead of using BMI as a variable, let’s use obesity as a dichotomous variable, defined as a BMI greater than 30 ....more

How to write a statistical analysis paper: Step Three

So far, we have looked at How to get the sample demographics and descriptive statistics for your dependent and independent variable. Computing descriptive statistics by category...more

The Advantages of Being An Old Judo Player: Less Bullshit, More Tequila

Believe it or not, young people, there are some advantages of being old that make up for the wrinkles and bad knees. Chief among these is less dealing with bullshit.1. You're more likely to recognize a line of bullshit.For example, I've heard people saying that judo is growing in the U.S.My old friends and I laugh at this because we have been around long enough to remember when there were several times as many people in the divisions at the national championships as there are now. Because we were there, we know that those tournaments did not have novice divisions, brown belt divisions, masters divisions ....more

How do I write a statistical analysis paper: Step two

In the last post, I posed the following null hypothesis as an example: There is no difference in obesity among Caucasians, African-Americans and Latinos. You can see the results from the statistical analyses here. Since my question only pertains to those three groups, let’s begin by creating a data set with just those subjects ....more

No one is like family but your family: A picture is worth a thousand words

I received several emails today from people saying, Your daughter, Ronda is SO sweet! These emails were special in that they came from my family. Sometimes people ask me why I think Ronda has avoided the pitfalls that many other entertainers and athletes have fallen into ....more

How Do I Write a Statistical Analysis Paper? Advice to Students

I get asked this question fairly often so I thought I would do a few posts on it. The most common problem is that a student who is new to statistics has no idea where to even start. These examples use SAS but you could use any package you like ....more

Probability and z-scores

For many students just learning statistics, the relationship of z-scores and probability is confusing. Let’s try this concrete example. Here is a chart of the distribution of height in a sample of over...more

How to Deal With Bullying

I've been asked a few times recently to give advice on bullying and I was at a loss. Truthfully, I experienced no bullying in school.HOW NOT TO DO THINGSIf another kid, or group of kids, tried to fight me, I would launch myself at the biggest or closest one in the group. I might get hit by a board (happened), have a brick thrown at me (happened) or have another kid kick me in the ribs (also happened), but at the end of it, someone in addition to me was going home with scars ....more

Think About This When Your Life Seems Like Crap

I'm on the Fort Berthold Reservation this week learning about Community Reinforcement methods for prevention and treatment of substance abuse. Bruce Gillette, the Licensed Addiction Counselor who organized the program keeps making this point: If you want to grow a good crop, what do you put on it? Manure, right? ...more