Search results with tag "Internal consistency"
CRONBACH’S ALPHA 1
files.eric.ed.govOne property of alpha (Cronbach, 1951) is it is one type of internal consistency coefficient. Before alpha, researchers were limited to estimating internal consistency of only dichotomously scored items using the KR-20 formula. Cronbach’s (1951) alpha was developed based on the necessity to evaluate items scored in multiple answer categories.
Statistical considerations in confirmatory clinical trials II
www.ema.europa.euSubgroup analysis • Overall concern that the response of the “average” patient may not be the response of the all patients in the study • Routine requirement for analysis by subgroup • Aim • Identify patient groups with differential treatment effects • Assessment of internal consistency • Licence can be restricted if not ...
STATISTICAL ANALYSIS: INTERNAL-CONSISTENCY …
www.eajournals.orgIn this paper, there will be brief literature review about the reliability and validity concepts, and a procedure used to express reliability and validity tests. LITERATURE REVIEW In order for a survey to be valuable and of use, it must be both reliable and valid. If …
Measuring student satisfaction - ed
files.eric.ed.govscores are calculated to assess the internal consistency of the resulting groups. We then use three different approaches to derive composite scores to represent the groups created: Rasch analysis, weighted composite averages and straight averages.1 Finally, we determine the extent to which the newly established composite scores differ and which ...
Job Analysis Methods Uses of Job Analysis
www.ou.edu4 19 Types of Reliability Test-retest reliability Alternate-form reliability Split-half reliability Internal consistency (a.k.a., Kuder-Richardson reliability; a.k.a., Coefficient Alpha)