Investigating Affective Attitude Question-behaviour Effects on Intention to Become an Organ Donor

Circumventing the 'Ick' Factor: a Multi-site Randomised Trial of the Effects of Omitting Affective Attitudes to Increase Intention to Become an Organ Donor

The investigators aim to experimentally manipulate presence of questions on positive or negative affective attitudes to see if including these moderate as intention to become an organ donor. The methodology will be replicated across three international sites (RCSI Dublin, RCSI Bahrain, RCSI Perdana University).

Study Overview

• Status: Completed
• Conditions: Organ Donation
• Intervention / Treatment: Behavioral: Question-behaviour effect (for affective attitudes); Behavioral: Question-behaviour effect (negatively-worded attitudes)

• Study Type: Interventional
• Enrollment (Actual): 999
• Phase: Not Applicable

Contacts and Locations

Study Locations

• India
  • Karnataka
    • Manipal, Karnataka, India, 576104
      • Manipal University
• Ireland
  • Dublin, Ireland, D2
    • RCSI
• Malaysia
  • Serdang
    • Perdana, Serdang, Malaysia, 43400
      • RCSI Perdana University
• United Kingdom
  • Stirling, United Kingdom, FK9 4LA
    • University of Stirling

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Agree to participate

Exclusion Criteria:

• Refuse to participate

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Health Services Research
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Replication group; Replication group - this group will complete the entire questionnaire, in order to replicate the findings of O'Carroll et al (2011)
Active Comparator: Omit affective attitudes; Omitting affective attitudes The intervention is the omission of all questions on affective attitudes. This group will complete a similar questionnaire to the replication group, with the same number of questionnaire items, but affective attitudes will be omitted. Dummy questions (e.g. about politics) will be substituted for these deleted questions.	Behavioral: Question-behaviour effect (for affective attitudes); Investigators propose to investigate the Question-behaviour effect (omit affective attitudes). Investigators will conduct an experimental manipulation by omitting certain items from a questionnaire assessing attitudes to organ donation. Specifically, investigators will omit questions on affective attitudes. This group will complete a similar questionnaire to the comparison group, with the same number of items, but items on affective attitudes will substituted for non-affective items (e.g. on political parties).; Other Names: Priming
Active Comparator: Omit negatively-worded items; Omitting negatively-worded affective attitudes. This intervention is the omission of a subset of negatively-worded affective attitudinal items. This group will complete a similar questionnaire to the replication group, with the same number of items, but all negatively-worded affective attitudes will be omitted. Dummy questions (e.g. about politics) will be substituted for these deleted questions.	Behavioral: Question-behaviour effect (negatively-worded attitudes); Behavioral: Question-behaviour effect (for negatively-worded attitudes) Investigators propose to investigate the Question-behaviour effect (omit negatively-worded affective attitudes). Investigators will conduct an experimental manipulation by omitting certain items from a questionnaire assessing attitudes to organ donation. Specifically, investigators will omit questions on negatively-worded affective attitudes. This group will complete a similar questionnaire to the comparison group, with the same number of items, but items on negatively-worded affective attitudes will substituted for non-affective items (e.g. on political parties).; Other Names: Priming

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Intention to become an organ donor	Mean score of two 7-point items: "I will definitely sign up for organ donation and discuss this with my family in the next few months" and "How strong is your intention to sign up for organ donation and discuss this with my family in the next few months?"	within 3 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Taking a donor card after the interview	"Did survey participant accept a donor card?" Yes/No	Immediately at the end of the interview (i.e. that day, an average of 10-15 minutes after consenting to participate))

Collaborators and Investigators

• Sponsor: Royal College of Surgeons, Ireland
• Collaborators: University of Stirling; Manipal University
• Investigators: Principal Investigator: Frank Doyle, PhD, Royal College of Surgeons in Ireland

Study record dates

Study Major Dates

• Study Start: February 1, 2016
• Primary Completion (Actual): December 1, 2017
• Study Completion (Actual): April 1, 2018

Study Registration Dates

• First Submitted: June 14, 2016
• First Submitted That Met QC Criteria: July 6, 2016
• First Posted (Estimate): July 7, 2016

Study Record Updates

• Last Update Posted (Actual): March 27, 2019
• Last Update Submitted That Met QC Criteria: March 26, 2019
• Last Verified: April 1, 2018

More Information

Terms related to this study

• Other Study ID Numbers: REC1048b

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED