Non-Experimental Methods 2 Flashcards
What are descriptive surveys?
Seeks to determine what percentage of the population have particular characteristics, beliefs, or behaviours (who are you, what do you believe, how will you/do you act), uses sample to draw conclusions about the population
What is the goal of descriptive surveys?
To be representative
What is an example of a time that representation using a descriptive survey failed?
1936 presidential election- used a literary digest poll that was mailed out to residential telephone subscribers, and automobile owners (had 2.3 million responses). Problem- Sampling Bias: Roosevelt had more working class support. Self-Selection Bias- Roosevelt was the incumbent-people who were unhappy with him were more likely to respond
What are analytic surveys?
Seek to determine relevant variables and how they are related (ex: is aggression related to health behaviours in adolescents?)
What are the steps to doing an analytic survey?
1) Find the relevent variables and operationally define them
2) How are they related? Do a correlation (find direction, positive or negative and magnitude)
What is a decent magnitude?
.2 or .3
What are the steps in developing your own survey if one doesn’t already exist?
1) How will you administer it?
2) What kinds of questions?
3) Write the items
4) pilot testing
5) Any other info you want to collect?
6) Create survey instructions
What are some of the ways we can administer a survey?
Mailing, telephone, one on one
What are the pros of mailing?
Can be completed without the researcher, can be sent to a large number of people, little to no data entry (with online surveys)
What are the cons of mailing?
Unsure as to who in the home answered the survey, can’t be sure that the questions were answered in order, low response rate (25-30% is considered high)
What are the pros of telephone?
Increased random sampling with random digit dialing, can enter data immediately on computer, can clear up ambiguous answers, can control order of questions
What are the cons of telephone?
Caller ID and voicemail, low response rates, can’t use visual aids or measure nonverbal cues, difficult to establish rapport
What are the pros of one on one?
Increased response rate, can clear up ambiguous answers, can control order
What are the cons of one on one?
Takes more time of experimenter and participant, is more expensive, possibility of interviewer bias.
What do good survey questions have?
Familiar vocabulary, they are short, clear and concise, appropriate reading level for sample, specific, positively and negatively phrased.