Noting other studies finding that between one - third and one - half of players report concussion symptoms for which they did not seek medical attention, and the fact that, in the current study, only 44.1 % of athletes identified through the weekly
interviews sought medical evaluation by a QHP, and that the concussion rate considering only those diagnosed by a QHP was far lower
than the overall rate reported -LRB-.4 per 1,000 AEs
versus 1.3 per 1,000 AEs).
The strongest research methods for psychological studies are: qualitative findings
versus quantitative; experimental rather
than descriptive or correlational; controlled - experiment, meta - analysis, and observation designs over archival, case study, computational modeling, content analysis, field experiment,
interview, neuroimaging, quasi experiment, self - report inventory, random sample survey, or twin study; and prospective (where subjects are recruited prior to the proposed independent effects being administered) and longitudinal (where subjects are studied at multiple time points) rather
than retrospective or cross-section study.