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Table 2 Data collection of the X:IT II study – timeline, instrument and source of data

From: Study protocol of the X:IT II - a school-based smoking preventive intervention

 

Baseline September 2018

Intervention

Follow-up 1 May 2018

Intervention

Follow-up 2 April 2019

Intervention

Follow-up 3 April 2020

Students

Questionnaires (students start year 7)

 

Questionnaires (students end year 7)

Observations and interviews

Questionnaires (students end year 8)

 

Questionnaires (students end year 9)

School coordinators

Questionnaires

 

Questionnaires

 

Questionnaires

 

Questionnaires

Teachers

 

Monthly questionnaires on curricular activities (September – June)

 

Observations and interviews Monthly questionnaires on curricular activities (September – June)

 

Monthly questionnaires on curricular activities (September – June)