research study help

Sara Maidaa

HLTH 511

Research Methods

Liberty University

Methods

Sample:

A population-based cross-sectional study was conducted on a sample of 20 primary school children, aged 4 to 15 years old.

Equipment:

Flexible inextensible tape: Task Force Hand Tools 25-foot tape measure.

Pediatric Height/Weight Scale

Measurements:

Weight and height were measured.

Written consent for physical examination was obtained from the parents.

All measurements were performed by trained research assistants, and under standard protocols.

Weight and height were measured twice to the nearest 0.1 cm and 0.1 kg, respectively, with children being barefoot and lightly dressed, and standing straight and immobile on the scale.

BMI was calculated as weight in kilograms divided by the square of height in meters (kg/m²).

Statistical Procedures:

Mean, median, standard deviation, minimum and maximum will be calculated for the sample. Data will be examined for outliers.

Pearson product moment correlation was used to determine the magnitude and significance of the relationship between food marketing and obesity in school children.

Hypotheses Being Tested:

Null Hypothesis: ρ (rho) =0 There is no significant relationship between food marketing and childhood obesity.

Alternative Hypothesis: ρ (rho) ≠0 There is a significant relationship between food marketing and childhood obesity.

Hypotheses tested at the 0.05 level of significance.

If a significant relationship between food marketing and childhood obesity is established then regression analysis was used to derive an equation to predict food marketing from obesity.