Sentence examples for questionnaires were used from inspiring English sources

Questionnaires were used to collect data.

Questionnaires were used to collect human responses.

Nine hundred thirty-six completed questionnaires were used for analyses.

Design: Pre-post questionnaires were used to assess physician attitudes.

Prepared and pre-tested questionnaires were used.

Questionnaires were used to collect primary data.

Therefore, only 354 questionnaires were used for analysis.

Three questionnaires were used for data collection: i).

Structured questionnaires were used to collect the primary data.

Constructed questionnaires were used to perform a survey.

Details about which questionnaires were used were published previously [14].