NURS301 Lecture Notes - Lecture 6: Content Validity, Audit, Internal Validity
Document Summary
Null hypothesis = hypothesis of no effect or no association. Directional hypothesis = there is a positive association between 2 ideas (__ has an effect on __) Type 2 when there is an effect but the study accepts the null hypothesis, the study findings were wrong (false negative, type 2 error, can happen when sample sizes are too small to detect an effect) Interrater reliability different people conducting measurement and see if there is a difference in responses: reliability coefficient (just know the what it is no details, homogeneity measured 4 ways (psychometric measures): Item to total correlation: compare one answer to the mean (want coefficient to be atleast. 0. 3: split half reliability, split the population in half and compare averages (spearman- Results: results should set the stage for the discussion section, should never have new information in discussion section, name of the test and statistical value (letter / number) and probability level.
