Fourteen Medical Students in Their Last Year of Training Are

Multiple Choice

Fourteen medical students in their last year of training are asked to make diagnostic decisions under three conditions: alone, with two senior doctors present and in a simulation of a chaotic emergency department. Twelve first year medical students are also asked to complete the same task conditions.
-7) In the analysis described above the within subjects df will be:

A) 51
B) 53
C) 52
D) 50