Medical statistics Normal distribution January 18, 2021January 18, 2021 Saving Bookmark this article Bookmarked
Medical statistics Measures of dispersion January 16, 2021January 16, 2021 Saving Bookmark this article Bookmarked
Medical statistics Measures of central tendency January 10, 2021January 10, 2021 Saving Bookmark this article Bookmarked
Medical statistics Data, variables and parameters January 7, 2021January 7, 2021 Saving Bookmark this article Bookmarked
Medical statistics Tests of significance, part 2 The t-test is any statistical hypothesis test in which the test statistic follows a Student’s t-distribution under the null hypothesis. A t-test is the most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistics (under certain conditions) […] December 22, 2020January 8, 2021 Saving Bookmark this article Bookmarked
Medical statistics Tests of significance, part 1 Tests of significance: Statistical significance means there is a good chance that a relationship exists between two variables. Null hypothesis: States that there is no relationship between any two variables, so statistical effort will be directed to prove that Null hypothesis is likely or not likely. Statistical significance means that null hypothesis is unlikely. Statistical […] December 17, 2020January 8, 2021 Saving Bookmark this article Bookmarked
Medical statistics Presentation of data Data are usually collected in a raw format and thus the inherent information is difficult to understand. Therefore, raw data need to be summarized, processed, and analyzed. However, no matter how well manipulated, the information derived from the raw data should be presented in an effective format, otherwise, it would be a great loss for […] December 11, 2020January 8, 2021 Saving Bookmark this article Bookmarked
Medical statistics Risk measures You can examine the risk of an outcome, such as disease, given the incidence of the outcome in relation to an exposure, such as a suspected risk or protection factor for a disease. The type of data used by this function is counts or frequencies (number of individuals with a study characteristic). If you want […] December 6, 2020January 8, 2021 Saving Bookmark this article Bookmarked
Medical statistics Screening Whenever we create a test to screen for a disease, to detect an abnormality or to measure a physiological parameter such as blood pressure (BP), we must determine how valid that test is—does it measure what it sets out to measure accurately? There are lots of factors that combine to describe how valid a test […] December 1, 2020January 8, 2021 Saving Bookmark this article Bookmarked
Ergonomics concept made easy Nobody can work in a perfect position all the time. The best position For Tendons & Ligaments are those in which the muscles have the most strength. Body muscles will have the most strength if: Shoulders are relaxed. Elbows are near the side and bent at about 90 angle to reach the work. without any […] Written by Dr adel January 3, 2021January 8, 2021 Saving Bookmark this article Bookmarked
Ergonomics concept made easy Ergonomics is the process of designing or arranging workplaces, products and systems so that they fit the people who use them. Most people have heard of ergonomics and think it is something to do with seating or with the design of car controls and instruments – and it is… but it is so much more. […] Written by Dr adel January 2, 2021January 8, 2021 Saving Bookmark this article Bookmarked
Ergonomics concept made easy Nobody can work in a perfect position all the time. The best position For Tendons & Ligaments are those in which the muscles have the most strength. Body muscles will have the most strength if: Shoulders are relaxed. Elbows are near the side and bent at about 90 angle to reach the work. without any […] Written by Dr adel January 3, 2021January 8, 2021 Saving Bookmark this article Bookmarked
Ergonomics concept made easy Ergonomics is the process of designing or arranging workplaces, products and systems so that they fit the people who use them. Most people have heard of ergonomics and think it is something to do with seating or with the design of car controls and instruments – and it is… but it is so much more. […] Written by Dr adel January 2, 2021January 8, 2021 Saving Bookmark this article Bookmarked
Ergonomics concept made easy Ergonomics is the process of designing or arranging workplaces, products and systems so that they fit the people who use them. Most people have heard of ergonomics and think it is something to do with seating or with the design of car controls and instruments – and it is… but it is so much more. […] Written by Dr adel January 1, 2021January 8, 2021 Saving Bookmark this article Bookmarked