I wish to gather a sample of students at FAU in order to conduct a brief (ten minute) survey. I seek to gather data concerning dating behaviors and relationship attitudes among college students. I go to the breezeway and set up a table where students may opt to come by and complete the survey. In exchange for participating, students receive a $2 off coupon at Barnes & Noble. I set up the same table each day for a week so that students can also tell their friends to come by and complete this survey, thus maximizing the number of participants in my study. I ultimately collect data from 85 students whose mean age is 21 (standard deviation= 2.5).

 

Questions:

1. What is my sampling frame?
2. What sampling method did I use?
3. What might be some problems with this sampling method?
4. Will my sampling method provide my study with strong external validity? Why or why not?
5. How could I improve external validity in this study?
6. Since the standard deviation (SD) of the age of this group is 2.5, then that means 68% of my participants fell between what two ages?

 

See Trochim chapter https://conjointly.com/kb/sampling-statistical-terms/ Links to an external site. for information about "sampling frame" and "the 68, 95, 99% Rule"

Answer rating: 100% (QA)

What is my sampling frame Your sampling frame is the population from which you will be selecting your sample In this case your sampling frame is all s... View the full answer