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researchers have found that women who take oral contraceptives birth control pills are at higher risk of having a heart
in a study on worker productivity done in 1927 in cicero illinois it was observed that productivity improved when the
an investigator believes that a new medication will help to reduce anxiety and that a placebo will notin a single-blind
an experiment on elephants in captivity was done to find out whether breeding would occur more often when the elephants
in a sample of 500 college students aged 18 to 21 it was found that offering discount coupons for restaurant meals
a retrospective study of 517 veterans who never smoked was done to determine whether there was an association between
refer to given exercise describing a study about pet ownership and marriage explain whether each of the following is
refer to given exercise describing a case-control study relating childhood diet and heart disease comment on the extent
refer to a study published in the journal of the american medical association and reported in the sacramento bee on
this is also given exercise an article in science magazine service 1994 discussed a study comparing the health of 6000
this is also given exercise a headline in a major newspaper read breast-fed youth found to do better in schoola do you
reuters june 24 1997 reported on a study published in the journal of the american medical association 1997 vol 277 pp
a story at abcnewscom pet contact by rita rubin march 17 1998 reported that karen allen a researcher at the university
find an example of an observational study in the news determine whether or not it was a case-control study and whether
a study will be done to determine the relationship if any between where a college student lives on-campus or off campus
suppose researchers were interested in determining the relationship if any between the use of cellular telephones and
a medical researcher wants to know how lifetime sun exposure affects the risk of skin cancer for persons over 50 years
suppose you want to know whether men or women spend more time talking on a cell phone during a weeks timea describe how
a teacher wants to determine how class attendance during the term affects grades on the final exama describe how the
echinacea is an herb that may help to prevent colds and flu explain how researchers could conduct a double-blind
refer to given exercise in each case explain whether a control group was used and whether a placebo treatment was
refer to given exercise in each case explain whether the experiment was a matched-pair design a block design or
refer to given exercise in each case designate the explanatory variable and the response variableexercise explain