DrugLib.com — Drug Information Portal

Rx drug information, pharmaceutical research, clinical trials, news, and more

Theory of Planned Behavior and Implementation Intentions

Information source: Boston University
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Dietary Modification

Intervention: Implementation intention (Behavioral); General Plan (Behavioral)

Phase: N/A

Status: Enrolling by invitation

Sponsored by: Boston University

Official(s) and/or principal investigator(s):
Michele A DeBiasse, MS, RDN, Principal Investigator, Affiliation: Boston University/Graduate Medical Sciences


Diet quality has been associated with a variety of chronic diseases including obesity. One measure that has been studied as an indicator for diet quality is fruit and vegetable intake. Although the US government has suggested that American's increase their intake of fruit and vegetables, epidemiological data suggest that most Americans have not been successful doing do, with the strongest disparity seen in people of low socioeconomic status (SES). This disparity in fruit and vegetable intake is thought to be the result of both individual and environmental factors that influence this health behavior. To help decrease the disparate rise in incidence of chronic disease in people of low SES, effective, cost-efficient and easy to implement interventions to improve fruit and vegetable intake and diet quality are needed. Theoretical models of health behavior change have been successfully used in research targeting individual factors associated with health behaviors. One theory, the Theory of Planned Behavior (TPB), and a proposed extension of this model (implementation intentions) have been shown to be effective to increase fruit and vegetable intake in (mostly) white adults of average socioeconomic status. It is not know whether an implementation intention intervention to increase fruit and vegetable intake would be effective in women who are of low socioeconomic status. The primary aim of this research is to study (using quantitative and qualitative analysis) an implementation intention intervention to produce a positive change in fruit and vegetable intake. We theorize that the setting of an implementation intention in this group will be effective, cost-effective, and easy to implement intervention to promote an increase in fruit and vegetable intake.

Clinical Details

Official title: Theory of Planned Behavior and Implementation Intentions: Effective for Improving Fruit and Vegetable Intake in Women of Low Socioeconomic Status?

Study design: Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject)

Primary outcome: Change in mean intake of fruit and vegetables (servings per day) both within and between the experimental and control groups.


Minimum age: 18 Years. Maximum age: 72 Years. Gender(s): Female.


Inclusion Criteria:

- Resident of Boston Public Housing

- Identifies as female

- Age 18-72

- Able to give informed consent

- Agrees to be randomized into either the intervention or the control groups

- Understands English sufficient to comprehend purpose, risks, benefits and voluntary

nature of the study, and to complete the surveys and provide information in this language Exclusion Criteria:

- Does not consent to study participation

- Currently pregnant

- Identifies as following a strict medically prescribed diet, as having an allergy to

fruit and/or vegetables, or as currently taking medications that necessitate the avoidance or reduction of fruit and/or vegetable intake.

- Does not agree to be randomized into either the intervention or control groups

Locations and Contacts

Boston University School of Medicine, Boston, Massachusetts 02118, United States
Additional Information

Starting date: August 2014
Last updated: July 30, 2014

Page last updated: August 23, 2015

-- advertisement -- The American Red Cross
Home | About Us | Contact Us | Site usage policy | Privacy policy

All Rights reserved - Copyright DrugLib.com, 2006-2017