power analysis for NPS score /sample size

Hansdewit — Thu, 05 May 2022 08:48:27 GMT

in our company we are using NPS as customer satisfaction measurement. i have to prove that we need to increase the sampling size, so I want to use proc power.

Normally I use proc power for 2 groups, But NPS has 3 groups (promoter, detractor, passive).

Which method should I use in proc power?

Re: power analysis for NPS score /sample size

sbxkoenk — Thu, 05 May 2022 09:15:35 GMT

Hello Hans,

Have a look to these Communities topics and let us know if it answers your question :

proc power for multiple groups
https://communities.sas.com/t5/Statistical-Procedures/proc-power-for-multiple-groups/td-p/273595
Proc power for multiple group sample size calculation
https://communities.sas.com/t5/Statistical-Procedures/Proc-power-for-multiple-group-sample-size-calculation/td-p/433971
Sample size calculation for three groups
https://communities.sas.com/t5/Statistical-Procedures/Sample-size-calculation-for-three-groups/m-p/171262#M8906

Koen

topic Re: power analysis for NPS score /sample size in Statistical Procedures

power analysis for NPS score /sample size

Re: power analysis for NPS score /sample size