Complex sentence: For instance, a questionnaire may include questions about respondents drug use history, current earnings and sexual persuasions, many of the subjects in the sample may not answer due to the intrusive nature of the questions, but may answer all other items.
Split into simpler sentences: For instance, a questionnaire may include questions about respondents drug use history, current earnings and sexual persuasions. Many of the subjects in the sample may not answer due to the intrusive nature of the questions, but may answer all other items.