Project #94675 - Wk#6 -Correlation or Causation? - Experimental Psychology - Committee Meeting

 

Committee Meeting: At Committee Meetings, there is a single question that requires members to make a recommendation or decision. Remember, your response must be accompanied by strong rationale.

Keeping a food diary can double a person's weight loss

Keeping a food diary can double a person's weight loss according to a study from Kaiser Permanente's Center for Health Research. The findings, from one of the largest and longest running weight loss maintenance trials ever conducted, will be published in the August issue of the American Journal of Preventive Medicine.

 

Funded by the National Heart, Lung and Blood Institute at the National Institutes of Health, the study is one of the few studies to recruit a large percentage of African Americans as study participants (44 percent).

 

African Americans have a higher risk of conditions that are aggravated by being overweight, including diabetes and heart disease. In this study, the majority of African American participants lost at least nine pounds of weight, which is higher than in previous studies.

 

"The more food records people kept, the more weight they lost," said lead author Jack Hollis Ph.D., a researcher at Kaiser Permanente's Center for Health Research in Portland, Ore. "Those who kept daily food records lost twice as much weight as those who kept no records. It seems that the simple act of writing down what you eat encourages people to consume fewer calories."

 

In addition to keeping food diaries and turning them in at weekly support group meetings, participants were asked to follow a heart-healthy DASH (a Dietary Approaches to Stop Hypertension) diet rich in fruits and vegetables and low-fat or non-fat dairy, attend weekly group sessions and exercise at moderate intensity levels for at least 30 minutes a day.

 

After six months, the average weight loss among the nearly 1,700 participants was approximately 13 pounds. More than two-thirds of the participants (69 percent) lost at least nine pounds, enough to reduce their health risks and qualify for the second phase of the study, which lasted 30 months and tested strategies for maintaining the weight loss.

 

Does the research support a causal claim? Why or why not? Defend your answer.

If I wanted to examine weight loss and amount of writing in a daily diary what statistical test would I need to use?

 

Note ** There is no word count; double spaced; at least 1 1/2 pages.

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Due By (Pacific Time) 11/25/2015 11:00 am
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