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

NCT02825862 | Completed

• 1 other identifier: REC1048b
• Study Type: interventional
• Target: 999
• Locations: 4 countries
• Sites: 4

Brief Summary

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).

Conditions

Organ Donation

Outcome Measures

Primary Outcomes (1)

• 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 Outcomes (1)

• Taking a donor card after the interview

  Immediately at the end of the interview (i.e. that day, an average of 10-15 minutes after consenting to participate))

Study Arms (3)

Replication group

NO INTERVENTION

Replication group - this group will complete the entire questionnaire, in order to replicate the findings of O'Carroll et al (2011)

Omit affective attitudes

ACTIVE COMPARATOR

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)

Omit negatively-worded items

ACTIVE COMPARATOR

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)

Interventions

Question-behaviour effect (for affective attitudes) BEHAVIORAL

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).

Also known as: Priming

Omit affective attitudes

Question-behaviour effect (negatively-worded attitudes) BEHAVIORAL

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).

Also known as: Priming

Omit negatively-worded items

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Agree to participate

You may not qualify if:

• Refuse to participate

Sponsors & Collaborators

• Royal College of Surgeons, Ireland: lead
• University of Stirling: collaborator
• Manipal University: collaborator

Study Sites (4)

Manipal University

Manipal, Karnataka, 576104, India

Location

RCSI

Dublin, D2, Ireland

Location

RCSI Perdana University

Perdana, Serdang, 43400, Malaysia

Location

University of Stirling

Stirling, FK9 4LA, United Kingdom

Location

Study Officials

• Frank Doyle, PhD

  Royal College of Surgeons in Ireland

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: HEALTH SERVICES RESEARCH
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: June 14, 2016
• First Posted: July 7, 2016
• Study Start: February 1, 2016
• Primary Completion: December 1, 2017
• Study Completion: April 1, 2018
• Last Updated: March 27, 2019

Record last verified: 2018-04

Locations

MY (1); IE (1); IN (1); GB (1)