caries {rater} | R Documentation |
Dentist ratings of whether caries are healthy or not based on X-rays
Description
It consists of binary ratings, made by 5 dentists, of whether a given tooth was healthy (sound) or had caries, also known as cavities. The ratings were performed using X-ray only, which was thought to be more error-prone than visual/tactile assessment of each tooth. In total 3,689 ratings were made. This data is in 'grouped' format. Each row is one of the 'pattern' with the final columns being a tally of how many times that pattern occurs in the dataset.
Usage
caries
Format
A data.frame
with 6 columns and 32 rows.
- rater_1
The rating of the dentist 1
- rater_2
The rating of the dentist 2
- rater_3
The rating of the dentist 3
- rater_4
The rating of the dentist 4
- rater_5
The rating of the dentist 5
- n
The number of times the rating pattern appears in the dataset
References
Espeland, Mark A., and Stanley L. Handelman. “Using Latent Class Models to Characterize and Assess Relative Error in Discrete Measurements.” Biometrics 45, no. 2 (1989): 587–99.