Maddy c Laberge

7 Questions 4 Answers 0 Followers

Questions related from Maddy c Laberge

What do negative bias/prevalence index values mean (when examining Kappa)?

I'm getting some negative values when I calculate my BI and PI for my kappa table? What does what mean? Any help greatly appreciated.

01 January 2018 5,480 4 View

Can you calculate prevalence -adjusted bias-adjuster kappa (PABAK) for three observers?

I have found a bunch of research on how to calculate PABAK, prevalence index and bias index but nothing when there are three (3x3) or four observers (4x4). Any help/formulas would be greatly...

01 January 2018 4,443 0 View

I'm using Kappa Statistics to asses test-retest of a questionnaire. How do I calculate Confidence Intervals?

I'm using Kappa Statistics to asses test-retest of a questionnaire that is all categorical data. I am just wondering if I should be calculating confidence intervals and if I should how do I go...

11 November 2017 8,915 8 View

How to determine sample size when using kappa stats to examine test retest of a questionnaire?

I am examining the reliability via test retest of a questionnaire that only has categorical variables. As a result I will be using kappa stats but I am unclear how to determine sample size. Any...

10 October 2017 2,928 4 View

What is the number of experts I need when I am examining the content validity of a questionnaire using the content validity index?

I am validating a questionnaire that I developed which examines the levels of personal disaster preparedness in people with COPD. I am trying to determine what is the number of experts I need when...

10 October 2017 4,235 3 View

How do I analyse test-retest data on a questionnaire made up of categorical data?

We are developing and validating a questionnaire regarding chronic disease and disaster preparedness. The questions are all categorical in nature ie: 1) Which of the following items do you have...

09 September 2016 8,362 4 View

I'm using Kappa Statistics to asses test-retest of a questionnaire that is all categorical data. How do I calculate the required sample size?

For my thesis I am developing and validating a questionnaire to asses with people with COPD (a chronic respiratory diseases) are engaging in disaster preparedness. The data is all categorical (you...

01 January 1970 3,357 5 View