1.Identify whether or not the proceeding variables in the following research question are independent or dependent: Are race, ethnicity, parity, and

1.Identify whether or not the proceeding variables in the following research question are independent or dependent: Are race, ethnicity, parity, and one clinically obese parent predictors of childhood obesity?

	Childhood obesity
	Race
	Ethnicity
	Parity
	One clinically obese parent

2.Identify whether or not the proceeding variables in the following research question are independent or dependent: Is driving while under the influence associated with age?

	Driving under the influence
	Age

3.Identify whether or not the proceeding variables in the following research question are independent or dependent: Is low birth weight prevalent among families living in urban environments or rural environments?

	Living in urban environments
	Living in rural environments
	Low birth rates

QUESTION 4

Identify whether or not the proceeding variables in the following research question are independent or dependent: Are heavy smokers more likely to be diagnosed with lung cancer than are light smokers?

	Light smokers
	Heavy smokers
	Lung cancer diagnosis

QUESTION 5

Identify whether or not the proceeding variables in the following research question are independent or dependent: Is consumption of two or more cups of caffeinated coffee per day associated with pancreatic cancer?

	Pancreatic cancer
	Consumption of 2 or more cups of regular coffee per day

6.Identify whether the type of personal data that follow are discrete, continuous, or dichotomous:

	Age at last birthday
	Marital status (married versus single)
	Current weight in pounds
	Height
	Intelligence quotient (IQ) score
	Perception of smoking as “good” or “bad”
	The range of midterm test scores in a class that you are teaching
	The minimum passing score on a math test
	A high school class’s mean SAT score
	College attendance

7.Indicate whether the following research sampling methods are convenience samples or random samples:

	I select 150 students from my local university for a study on stress among college students.
	I randomly assign 25 persons from my place of work to a control group and 25 to an experimental group for a study on workplace satisfaction.
	Using a random number generator, I select a minimum sample size study population of male U.S. citizens with a passport from a passport database obtained from the U.S. State Department.
	I survey all certified public high school teachers in the city of Chicago, Illinois.
	I administer a rapid HIV antibody test to the first 50 consenting adults older than age 18 who stop by my booth at the health fair.