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quitting smoking and risk for type 2 diabetesresearchers studied a group of 10892 middle-aged adults over a period of
problem a marketing class designs two videos advertising an expensive mercedes sports car they test the videos by
problem the community intervention trial for smoking cessation asked whether a community-wide advertising campaign
problema medical experiment compares an antidepressant medicine with a placebo for relief of chronic headaches there
problemdo violence and sex in television programs help sell products in advertisements subjects were randomly assigned
the nurses health study has interviewed a sample of more than 100000 female registered nurses every two years since
find an experiment you can find the latest medical research in the journal of the american medical association at
probleman herb for depression does the herb saintjohns-wort relieve major depression here are some excerpts from the
problem do antioxidants prevent cancer people who eat lots of fruits and vegetables have lower rates of colon cancer
quick randomizingproblem heres a quick and easy way to randomize you have 100 subjects 50 women and 50 men toss a coin
problemwine beer or spirits women as a group develop heart disease much later than men we can improve the completely
problem athletes taking oxygen we often see players on the sidelines of a football game inhaling oxygen their coaches
problem growing trees faster the concentration of carbon dioxide co2 in the atmosphere is increasing rapidly due to our
problem frappuccino light heres the opening of a starbucks press release starbucks corp on monday said it would roll
problem checking the randomization if the random assignment of patients to treatments did a good job of eliminating
can low-fat food labels lead to obesity what are the effects of low-fat food labels on food consumption do people eat
the benefits of red wine some people think that red wine protects moderate drinkers from heart disease better than
problem getting teachers to come to school elementary schools in rural india are usually small with a single teacher
problem observation versus experiment observational studies have suggested that vitamin e reduces the risk of heart
problem alcohol and heart attacks many studies have found that people who drink alcohol in moderation have lower risk
problem poor survey designs the web site for the american association for public opinion research discusses several
problem the canadian census the canadian governments decision to eliminate the mandatory long-form version of the
problem your own bad questions write your own examples of bad sample survey questionsrequiredi write a biased question
problem wording survey questions comment on each of the following as a potential sample survey question is the question
gulf oil spillproblem two months after the gulf oil spill began in april 2010 nearly half of americans 49 believed that