## Is ASQ:SE-2 technically sound?

ASQ:SE-2 was investigated with more than 16,424 questionnaires across the age intervals. Reliability is 89%; validity is between 71% and 90%. Complete details can be found in the technical report in the [ASQ](/content/asqse-2-technical-appendix/index.html):SE-2 [User’s Guide](/content/asqse-2-technical-appendix/index.html).

#### Tags

[ASQ:SE-2(123)](https://support.agesandstages.com/kb/tag/143) [User's Guide(37)](https://support.agesandstages.com/kb/tag/151) [reliability(3)](https://support.agesandstages.com/kb/tag/247) [validity(3)](https://support.agesandstages.com/kb/tag/248)