Wafaa Yousif Abdel Wahed

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Questions related from Wafaa Yousif Abdel Wahed

Criteria of questions in a questionnaire to calculate cronbach's (alpha)?

if all questions must have same manner same 5-point likert scale if questions have different scales , SOME QUESTIONS have 2 points either yes or no . others are 5 point likert scale second...

30 December 2017 6,331 3 View

How can I calculate sample size in clinical trial with multiple arms and the dependent variable is quantitative?

i ask a general question

02 September 2015 9,174 4 View