Project Based on Evidence

Clinical Question

The clinical question guiding this project is: “Is there a significant difference in the results of body mass index (BMI) for elementary-aged children with childhood obesity included in a one-year study where their parents are provided with health promotion education compared to those in a control group in a community-based setting?”

Intervention Plan

The intervention focuses on educating parents on promoting their children’s health outcomes through proper nutrition, adopting a healthy lifestyle, and encouraging appropriate physical exercises. The goal is to measure changes in the children’s BMI over the intervention period.

Evaluation Tool

The evaluation tool for this intervention will be the BMI measurement. Baseline data on the children’s BMI will be collected at the start, followed by pre- and post-test measurements throughout the intervention period. Changes will be measured by comparing the calculated BMI, which accounts for the children’s age and sex.

Participants and Sampling

Participants will be elementary-aged children with childhood obesity and their parents. The inclusion criteria include:

  • Children diagnosed with childhood obesity.
  • Parents who are primary caregivers and are not receiving additional assistance in child health management.

The study will be conducted in a community with a health care facility where regular BMI assessments can be made. A sample of convenience will be used, ensuring a diverse representation of demographic factors such as age, sex, socioeconomic status, and educational background.


To protect participant confidentiality, responses will be coded rather than using personal identifiers. Only authorized investigators will access the data, which will be securely stored. Digital data will be protected using cloud storage with strong passwords, and physical data will be securely discarded a few months after the project concludes.

Study Design

The project will use a quasi-experimental design with a comparative approach to assess the difference in BMI outcomes before and after the intervention. Pretest and posttest measurements will be essential for evaluating the effectiveness of the intervention (Cook, 2015).


The study will take place in a community setting with access to a nearby healthcare facility. Participants will be selected based on the inclusion criteria mentioned earlier. Demographic factors will be well-distributed, and a sample of convenience will be used.

Confidentiality Measures

Participant confidentiality will be ensured by using coded identifiers and restricting data access to primary investigators. Data will be stored securely and discarded appropriately after the study.


The intervention includes comprehensive educational programs for parents on promoting their children’s health. Topics covered will be proper nutrition, healthy lifestyle adoption, and physical exercise importance. Parents will practice these principles with their children throughout the intervention. BMI measurements will be taken at the beginning and end of the intervention period to assess changes.

Instruments/Scales and Measurement of Outcomes

The primary outcome measure will be the BMI of participating children, calculated using height and weight data. T-tests will be employed to compare BMI values before and after the intervention, determining the significance of any changes (Campbell & Stanley, 2015). This method is reliable and valid for assessing statistical differences in research data.

Data Collection

Data will be collected through short questionnaires for participant demographics and BMI measurements. Baseline data will be gathered before the intervention, with pre-test data collected just before starting and post-test data collected immediately after the intervention concludes. Additional BMI data from similar age groups of healthy children will be collected for comparison.


Campbell, D. T., & Stanley, J. C. (2015). Experimental and quasi-experimental designs for research: Ravenio Books.

Cook, T. D. (2015). Quasi-experimental design: Wiley Encyclopedia of Management.

Fink, A. (2012). How to conduct surveys: A step-by-step guide.

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