I am carrying out an observational cross sectional survey study on 1400 doctors and nurses in a study setting and I was able to determine the sample size adequacy for the study to be 1222 with an online calculator using 95% confidence interval and 1.0 margin of error. I designed a questionnaire containing 46 items for the study to be rated on a Likert scale (Categorical scale). I want to determine the reliability of the instrument using Cohen Kappa and l desire to get a Kappa value of 0.7 or higher.
What will be my sample size and how many raters will rate the 46 items to achieve the above Kappa value? Thank you as l await your response.