About this trial
This study is a randomized controlled trial, nested in the SKETHIS e-cohort, aiming to evaluate whether adding a modest, narrative-driven, strorytelling introduction to a Patient-Reported Outcome questionnaire increases completion without compromising data quality.
This trial is led by SKEZI, a DeepTech start-up which markets a data collection solution and carries out the InnoPRO program, aimed at generating new knowledge in the field of e-cohorts.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Being a current SKETHIS participant (eligibiliy criteria: being 18 or older, living in France, reading and understanding French, having a digital device with internet access and a valid e-mail address)
Having completed the main SKETHIS questionnaire and the socio-demographic information questionnaire
Providing consent to participate to the study
Disqualifiers
None
Trial design
Parallel
Treatments tested in this trial
Storytelling questionnaire
Other interventionIn the context of the SKETHIS e-cohort, participants receive an email inviting them to complete a new online questionnaire regarding their physical activity. Participants are unaware that the experiment is being conducted or that the questionnaire uses storytelling.
Treatment groups
Trial outcomes
Primary outcomes
Completion rate
Proportion of participants who complete the Patient-Reported Outcome questionnaire within 30 days after the questionnaire is first sent, calculated as number of participants who fully completed the questionnaire divided by total number of participants included in the study (or arm)
Secondary outcomes
Completion rate for non-mandatory questions
Number of participants who answered additional non-mandatory questions divided by number of participants who validated the questionnaire
Ratio number of answered questions over time spent on the questionnaire
Number of answered questions divided by time spent on the questionnaire
Internal validity of the Patient-Reported Outcome questionnaire
Cronbach alpha and "floor and ceiling effects" for the Patient Reported Outcome questionnaire (Global Physical Activity Questionnaire)
Other outcomes
Global Physical Activity Questionnaire (GPAQ) Score
Score for level of physical activity calculated as per the WHO GPAQ questionnaire guideline
Participants' satisfaction
Net promoter score: "On a scale of 0 to 5, how likely are you to recommend participation to SKETHIS to a friend or colleague?"
Participants' satisfaction open-ended question
Number of dimensions identified by grounded theory analysis for the responses to the open-ended question on satisfaction: "What would you change to make the questionnaire more enjoyable to complete?"
Perceived scientificity of the questionnaire
Score for the question: "On a scale of 0 to 5, how serious do you take this scientific questionnaire?"
This trial is not recruiting at the moment. You can still explore other options: