Resource Library

Research has shown that marital status and employment are correlates of desistance. That is, adolescents involved with crime were more likely to discontinue offending in adulthood if they were married and had a good job. Most of what criminologists know about the process of desistance from crime is based on a sample of adult males in the 1950's. There is no question that life in America has changed drastically in the past fifty years. Given the importance of examining historical change inherent in the life course perspective, it is important to determine how changes in the social structure over time impact individuals. Therefore, the goals of this data analysis exercise are to examine changes in marriage and employment over the last fifty years. The purposes are to identify the changes that have taken place, and to hypothesize how these changes may affect the process of desistance from crime today.

This collection of datasets was compiled by the Biostatistics Department at Vanderbilt University. They come in R, S, Excel, and ASCII formats. Each also has a description in html format.

HotBits is a genuine random number generator powered by radioactive decay. Simply click the "Request HotBits" link, and specify how many bytes you would like (up to 2048) and in what form you prefer them. Hexadecimal returns numbers and letters, while C language returns integers. Then click the "Get HotBits" button, and your random numbers will appear on the screen.

This online textbook covers the following probability and statistics topics: Independence; Venn Diagrams; Bayes's Theorem; Counting; Binomial Expansion; Binomial Distribution; Continuous Distributions; Infinitesimals in Probability; Averaging; Variance; Gaussian Distribution; Random Walks; Correlation; Causation; Linear Regression; Unbiased Estimators; Hypothesis Testing; Shape of the Distribution; Variance of Mean Differences.

This scatterplot lets users plot a number of demographic variables and see the log transformation of those variables for numerous countries and income groups. Users can also see the information for any year from 1975 to 2004.

This dataset comes from a study of diabetic patients randomly assigned to a two-period crossover design. Patients were given 1 of 2 drug sequences (EN, NE) in each period and blood pressure was recorded. Questions from this study refer to the ability of the drugs to lower blood pressure. A text file version of the data is found in the relation link.

This dataset comes from a study of 8 healthy patients randomly assigned to a two-period crossover design. Patients were given 1 of 2 drug sequences and data on blood plasma levels wer recorded. Questions from this study refer how the drugs affect plasma levels. A text file version of the data is found in the relation link.

This dataset comes from a study of 26 healthy male subjects randomly assigned to a two-period crossover design. Patients were given either Drug A or Drug B, and data on plasma levels were collected. Questions from this study refer the similarity of the drugs. A text file version of the data is found in the relation link.

This dataset comes from a study of 48 hypertensive patients given one of 3 doses of one drug and one dose of another drug. Questions from this study refer to associations and relationships between the drugs. A text file version of the data is found in the relation link.

This dataset comes from a study of 16 healthy subjects randomly assigned to one of two treatment sequences in a two period crossover design. Treatments were from two different drug companies. Questions from this study refer to the similarities of the two treatments. A text file version of the data is found in the relation link.