Dear Stata-users,

I am looking for a way to calculate an index reflecting internal consistency of a scale consisting of multilevel items in Stata. More specifically, my scale consists of 3 items (measuring one construct), which participants filled out multiple times a day for multiple consecutive days. From my understanding, Cronbach's alpha is not the best option here and I would highly appreciate any ideas for obtaining a better index in Stata. I am using Stata 17.

Thank you all very much in advance!