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Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [4] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users. [5]
In medical diagnosis, test sensitivity is the ability of a test to correctly identify those with the disease (true positive rate), whereas test specificity is the ability of the test to correctly identify those without the disease (true negative rate). If 100 patients known to have a disease were tested, and 43 test positive, then the test has ...
Indeed, a high-powered individual patient data meta-analysis including data from 19 previously published prospective cohort studies, involving more than 11.000 CVD patients, found evidence that Type D is not a risk factor for mortality in CVD patients, while strong evidence was found for Type D personality as a risk factor for the occurrence of ...
Validity is the main extent to which a concept, conclusion, or measurement is well-founded and likely corresponds accurately to the real world. [1] [2] The word "valid" is derived from the Latin validus, meaning strong.
The National Science Bowl (NSB) is a high school and middle school science knowledge competition, using a quiz bowl format, held in the United States. A buzzer system similar to those seen on popular television game shows is used to signal an answer.
The United States Medical Licensing Examination (USMLE) Step 1 is a standardized test that assesses a medical student's knowledge of basic science concepts and their application to clinical medicine. The exam is one of three components required for medical licensure in the United States and is typically taken by students after their second year ...
The test consists of 50 questions, which must be completed in 45 minutes. ... is Kieran Fitzgerald from Friendswood High School, who achieved the highest score in any ...
A health risk assessment (HRA) is a health questionnaire, used to provide individuals with an evaluation of their health risks and quality of life. [5] Commonly a HRA incorporates three key elements – an extended questionnaire, a risk calculation or score, and some form of feedback, i.e. face-to-face with a health advisor or an automatic online report.