An intervention program that seeks to increase the representativeness of its student population must also be attentive to the representativeness of its faculty and staff members (Powell, 2007).
The rationale for restricting the number of participants to be selected from large clusters was to avoid the overweight of big classes so that the representativeness of the selected students in the university was ensured.
The rationale of restricting samples from a large class to up to 100 students is to reduce the likelihood of overweight of large classes and thus to ensure a better representativeness of the 10% sampled students in each university.
In Tanzania, dental and medical students were recruited from one university, thus the representativeness of the findings to other undergraduate- and post-graduate students is unknown.
The ethical requirement for active written consent from both student and parent likely affected the representativeness of the sample.
Forth, the study sample comprised of almost one-third college students, which raises the concern of the representativeness of the sample [ 54].
The representativeness of the 78 attendants in relation to the original sample of 111 graduating students from the total 1-year cohort in the country as a whole (n = 320) has been discussed elsewhere [ 9].
The fact that, at the end of the process, students were capable of successfully creating their own PPMs with great representativeness of physiological phenomena presents itself as the main finding of the reported experience.
The strength is the nation-wide sample, while a limitation can be the representativeness of our sample (N = 111) compared with the available cohort of last year's students (N = 320).
To test the representativeness of our sample, we compared all the independent variables for the "respondent" and "non respondent" students in the research activities questionnaire using a Student t-test (for continuous variables) and the χ test (for categorical variables).
