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Table 1 Number of students within each of the treatment combinations

From: The positive effect of role models in evolution instruction

  Role model absent Role model present
Nonmajors Majors Nonmajors Majors
NOS absent
 Evidence-based content n/a 27 n/a n/a
 Conceptual content 27 77 n/a n/a
NOS present
 Evidence-based content 202 22 464 n/a
 Conceptual content n/a n/a n/a n/a
  1. Not all treatment combinations were observed (labeled as “n/a”)