A team develops a questionnaire to measure asthma control in adolescents. Pediatric pulmonologists review the draft noting it includes wheeze frequency and rescue inhaler use but omits nighttime awakenings and exercise limitation—key domains of asthma control. A pilot study of 120 patients shows the current instrument correlates poorly (r=0.42) with FEV1 decline. Experts note medication adherence documentation is adequate. Which aspect of instrument quality are the reviewers primarily attempting to improve?
- A)Content validityGABARITO
- B)Selection bias
- C)Test retest reliability
- D)Positive predictive value
- E)Precision
Explicação
Content validity asks whether an instrument adequately covers all important dimensions of the concept it intends to measure. By identifying missing domains such as nighttime symptoms and exercise limitation, the experts are trying to ensure the questionnaire f... Ver explicação completa e trilha adaptativa →