Development and validation of a questionnaire to evaluate attitudes toward family medicine.

: A questionnaire that evaluates medical students' knowledge of and attitudes towards primary care and family medicine was developed and validated in order to analyze changes during medical training. A 34 items questionnaire with 5 options on a Likert-type scale was designed. Based on this, a 21 item version was developed and validated. The internal consistency, using Cronbach's alpha test, was estimated, and the questionnaire was analyzed by Rasch model. One hundred and fifty nine students responded to the brief questionnaire (95.78% of those enrolled). Cronbach's alpha was 0.72. Rasch analysis showed high adjustment of the items to the pattern, whit an average reliability of the estimates of the items of 0.97 and of the people of 0.68. Our questionnaire has shown acceptable internal consistency and good construct validity.