A news broadcaster reports the results of a study in which Which factors could have affected the conflicting results
people who took fish oil supplements did not reduce their of these studies? Check all that apply.
risk of heart attack
physical condition of study participants
Two months later, a different broadcaster reports the
results of another study claiming that taking fish oil daily bias of broadcasters
decreases the risk of a heart attack by nearly 50 percent.
diet of participants
length of study
education level of study participants
genetic differences in study participants
age of study researchers