A long questionnaire deters clients from responding to a client-satisfaction survey (or members of the law department to a morale survey). Even so, some general counsel want to explore how clients or employees feel about a large number of attributes. Is there a way to resolve these competing interests between responder fatigue and surveyor enthusiasm?
Yes, with a split survey. Take a lengthy survey with 20 questions. You can split the questions into two groups and randomly divide the people you send a survey to into two populations. Population one gets questions 1 through 10; population two gets questions 11 through 20. If you have enough respondents from both populations you can combine the results.