Indicate whether the following research sampling methods are convenience samples
ID: 3068626 • Letter: I
Question
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.
Explanation / Answer
Solution: 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.
Answer: The given sample is convenience sample because it involves non-probabilistic approach and the subjects are selected because of their convenient accessibility.
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.
Answer: It involves a random sampling method because participants are randomly assigned to control and experimental groups.
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.
Answer: It is a random sampling procedure because the participants are randomly selected using the random number generator.
I survey all certified public high school teachers in the city of Chicago, Illinois.
Answer: It involves convenience sampling procedure because only the selected portion is selected
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.
Answer: It follows convenience sampling method because it involves non-probabilistic approach and the subjects are selected because of their convenient accessibility.