BMJ : British medical journal
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A levels and intelligence as predictors of medical careers in UK doctors: 20 year prospective study.
To assess whether A level grades (achievement) and intelligence (ability) predict doctors' careers. ⋯ Results of achievement tests, in this case A level grades, which are particularly used for selection of students in the United Kingdom, have long term predictive validity for undergraduate and postgraduate careers. In contrast, a test of ability or aptitude (AH5) was of little predictive validity for subsequent medical careers.