I have some survey data that has descrete variables measuring item response time in sec. to completion each questions. I would like to isolate respondents who are consistently taking a lot of time across all questions. Say a respondent takes more or less 30 secs or more to answer each question. Any ideas?
Assuming the response time columns are in the same data table as the response columns, then you could easily create a new column which is the average of the all of the response time columns. Then using a Data Filter, you could eliminate all of the respondents that have a mean time over 30 seconds.
An alternate approach is:
There are multiple metrics, typically, order statistics (quantiles), to select/order/find the respondents with large decision time.