Evidence Based Medicine pills
Evidence Based Medicine pills
Factors that condition the sample size. The need to perform a correct calculation of the sample size necessary for a study is reviewed, as well as the main factors that influence the sample required to demonstrate the effect considered relevant…
Fragility index. Fragility index describes the minimum number of participants whose status has to change for p to go from being statistically significant to not being so.
Bilateral vs unilateral testing. We can choose between a bilateral vs unilateral testing. In the second case, we assume the direction of the difference in effect.
Null hypothesis. The null hypothesis is the center of the hypothesis testing, which seeks to be able to reject it when statistical significance is reached.