Let’s assume we find in a study that the Pearson’s correlation coefficient between
number of years of education and cigarette smoking is -0.73. This means that as
education level increases
a. smoking tends to increase.
b. smoking tends to decrease.
c. smoking changes 73%.
d. Education and smoking are unrelated.
e. An educated person smokes 73 cigarettes a day.
Which of the following are ways to judge the accuracy of secondary data?
a. Consider the source of the data
b. Look at the sponsor of the research that yielded the secondary data
c. Look for evidence that the research was done properly
d. All of the above are correct
e. Only B and C are correct.
Focus groups are less susceptible to executive and researcher biases than most other
exploratory techniques.
a. True