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Reactance to social authority in entertainment-education media: study protocol for an online randomized controlled trial

Reactance to social authority in entertainment-education media: study protocol for an online randomized controlled trial - REACT

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00022340
Enrollment
4002
Registered
2020-07-24
Start date
2020-08-17
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sugar intake

Interventions

Group 1: Will include an animated video about consuming added sugars, which is narrated by a pre-adolescent child. There will be a list experiment in this arm, with participants randomized to a contro

Sponsors

Heidelberg Institute of Global Health
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 59 Years

Inclusion criteria

Inclusion criteria: Eligibility criteria include being between the age of 18 and 59 years (male, female, or other) and being able to speak English.

Exclusion criteria

Exclusion criteria: Exclusion criteria if inclusion criteria is not achieved.

Design outcomes

Primary

MeasureTime frame
The primary outcome measure is the difference between the five trial arms in behavioral intent to reduce sugar intake. We will use the list randomization method to measure this difference. In each trial arm, participants will be randomly split (at a 1:1 ratio) into a control group or a treatment group. The control group will receive a list of five items. Participants will be asked to state how many of the items they agree with, without revealing which specifc items they agree with. The treatment group will get the same list but with one additional item about added sugars, package information about sugar, daily teaspoons of consumed sugar, soda drinks consumed, and home cooking preference. For each list, the minimum score is zero and the maximum score for the control list is five and six for the treatment list. We will use regression models to estimate the prevalence of each sensitive item.

Secondary

MeasureTime frame
1) Trait reactance proneness using a validated scale. 2) Threat of the message using a validated scale. 3) Anger toward the message using a validated scale.

Countries

Germany, United Kingdom, United States

Contacts

Public ContactAlain Vandormael

Institute of Global Health

alain.vandormael@uni-heidelberg.de06221 56-0

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 16, 2026