Good Afternoon Brains-trust!
I have a question relating to conducting a pilot test - retest to examine rater reliability.
I sent a pilot test to a group of 19 nurses to ascertain the stability of the tool over time. The tool itself has three questions. Question one then is further broken down into 15 questions, Question 2 has 6 questions and Question 3 has 13 questions.
Do I have to complete a Spearman's rho on each of the questions or can I use a cumulative score for each group of questions. Not sure if I am making myself 100% clear with my question and I apologise in advance.
If there is an article that you can direct me to in relation to the approach I want to take which is only three tests per nurse rather than many more....I would be eternally grateful.
Thank you in advance
Carol