Crime Rate
Definition
The number of recorded offences of a given type divided by the population at risk, usually per 100,000 people, which allows comparison across places and years of different sizes.
Related terms
- Ecological Fallacy
- The error of applying a statistical association observed at the population or group level to an individual, without verifying that the individual...
- Poisson Regression
- A regression model for count outcomes, such as burglaries per ward per month, that assumes the variance of the counts equals their...
- Chi-Square Test
- A goodness-of-fit test comparing the observed digit frequencies in a dataset to the expected Benford frequencies, producing a test statistic that is...
- Cross-Tabulation
- A table showing how two categorical variables, such as offence type and area type, are jointly distributed, used as the basis for...
- Interrupted Time-Series Design
- A design that compares the trend in a crime series before and after an identified intervention date, testing for a change in...
- Logistic Regression
- A regression method used when the outcome is binary, such as reconvicted or not, with coefficients read as odds ratios.
- Meta-Analysis
- A method that combines the results of many separate studies of the same question into a single, more precise estimate.
- Negative Binomial Regression
- A count regression model that adds a dispersion parameter to absorb overdispersion, the pattern where a crime count's variance exceeds its mean,...
- Time-Series Analysis
- Study of a sequence of measurements of the same variable taken at regular intervals, used to detect trend, seasonality and intervention effects.
- Trend Index
- A rate rebased to 100 in a chosen base year so that later years can be read directly as a percentage change...
Explained in these topics
- Statistical Methods in Crime Research
- Statistics in Criminological Research (Unit VI)The count of a given offence divided by the population at risk over the same period, conventionally expressed per 100,000 people.