Small Round Painful Ulcers Were Noted in the Tongue of a 24-Year-Old

question 17

Multiple Choice

Small round painful ulcers were noted in the tongue of a 24-year-old man. This has been a recurrent problem. The duration of each episode is about 2 weeks. The lesions are not preceded by blisters. He probably has:

• A) Pemphigus vulgaris
• B) Lupus erythematosus
• C) Recurrent herpes simplex
• D) Erosive lichen planus
• E) Aphthous ulcers

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Definitions:

Wilcoxon Rank Sum Test

A nonparametric statistical test that compares two independent samples to assess whether their populations have the same distribution.

Height Centimeters

A measurement of how tall a person or object is, specified in centimeters.

Observations Rank

The process of assigning ordinal ranks to data points based on their value or position relative to other points in the dataset.

Nonparametric Methods

Statistical methods that are not based on parameterized families of probability distributions, often used with data that doesn't meet the assumptions of parametric tests.