The Effect of Question Order on Outcomes in the Core Outcome Set for Brief Alcohol Interventions Among Online Help-Seekers: Protocol for a Factorial Randomized Trial.

ABSTRACT:

Background

A core outcome set (COS) for trials and evaluations of the effectiveness and efficacy of alcohol brief interventions (ABIs) has recently been established through international consensus to address the variability of outcomes evaluated.

Objective

This is a protocol for studies to assess if there are order effects among the questions included in the COS.

Methods

The 10 items of the COS are organized into 4 clusters. A factorial design will be used with 24 arms, where each arm represents 1 order of the 4 clusters. Individuals searching online for help will be asked to complete a questionnaire, and consenting participants will be randomized to 1 of the 24 arms (double-blind with equal allocation). Participants will be included if they are 18 years or older. The

SUBMITTER: Bendtsen M 

PROVIDER: S-EPMC7728524 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature