Question
Researchers conducted a study to examine the association of program delivery factors with weight loss (WL) in enrollees in iDiet , a commercial WL program.
Researchers conducted a study to examine the association of program delivery factors with weight loss (WL) in enrollees in iDiet , a commercial WL program. Data were collected on 644 adults enrolled in an 11-week group WL program, of whom 461 reported weight to 11 weeks (complete reporters). Predictors of %WL that were considered included meeting type (in-person vs. videoconference), participant type (worksite employees vs. community members), age, gender, BMI, and payment structure. Videoconference participants, older adults, and enrollees in incentivized programs were more likely to be complete reporters. %WL at 11 weeks was not associated with gender, starting BMI, or videoconference versus in-person groups. Worksite participants had greater %WL than community participants (p<0.001), and there was no significant difference in %WL between programs paid by the employee or employer. Greater %WL was achieved by individuals 30 versus < 30 years (p<0.001) and by those enrolling in January-March versus April-June (p=0.02). The researchers concluded that iDiet participants had clinically impactful mean WL. The observed high mean WL in worksites and videoconference-delivered programs broadens options for scalable WL program implementation. Considering the variables mentioned in this article, identify the most appropriate type of analysis that could have been used to make this conclusion by selecting one and only one of the following:
Select one:
a. Linear regression
b. One-way ANOVA
c. Two-way ANOVA
d. ANCOVA
e. Logistic regression
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