Evaluating Expectancy Effects in Weight Loss Measurement

September 13, 2019 updated by: Gareth R. Dutton PhD, University of Alabama at Birmingham
The purpose of this project is to examine potential bias or expectancies in individuals' measurement and recording of weight in a clinical-research setting.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

59

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35205
        • University of Alabama at Birmingham

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

undergraduate students

Description

Inclusion Criteria:

  • 19+ years-old
  • available to attend clinic sessions on dates provided for data collection

Exclusion Criteria:

  • younger than 19 years
  • not available on specified dates of data collection

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
weight data assessors
students recruited to weigh individuals in a research-based clinic
Other: clinic-based weight measurements

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
accuracy of clinic-based weight measurement
Time Frame: baseline
Participants will be asked to weigh individuals who they have been told are completing either the treatment or control condition of a weight loss trial (individuals will actually be paid actors playing the role of a study participant). Participants will weigh individuals on calibrated balance-beam scales, and the discrepancy between weights recorded when individuals are thought to be a treatment or control participant will be calculated, which is the primary outcome for this study.
baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Alabama at Birmingham

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2014

Primary Completion (Actual)

April 1, 2014

Study Completion (Actual)

May 1, 2014

Study Registration Dates

First Submitted

March 26, 2014

First Submitted That Met QC Criteria

March 28, 2014

First Posted (Estimate)

April 2, 2014

Study Record Updates

Last Update Posted (Actual)

September 17, 2019

Last Update Submitted That Met QC Criteria

September 13, 2019

Last Verified

September 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UAB-NORC-expectancy pilot

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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