Upload
nathaniel-melton
View
216
Download
0
Embed Size (px)
DESCRIPTION
Considering survey methods There is no best method Each method has strengths and weaknesses Ask yourself 1.”Who are the survey respondents?” 2. Is the research question more amenable to one method than to another?”
Citation preview
Questionnaires and Survey Design
Target population
Sampling frame
Not included in sampling frame
Not eligible
for survey
Cannot be contacted
Refuse to respond
Incapable of responding
SAMPLED POULATION
Considering survey methods
• There is no best method• Each method has strengths and
weaknesses• Ask yourself1.”Who are the survey respondents?”2. Is the research question more amenable
to one method than to another?”
Other Considerations
1. Administrative factors such as cost, time, geographic distribution
2. Questionnaire issues such as branching, complexity of questions, sensitivity issues, rapport with respondent
3. Data quality issues such as bias, knowledge about refusals and non-contacts, control of replies
Mailed questionnaires
• Cost is relatively low• Response rate may be poor and biased
towards more educated and those with an interest in the topic
• No knowledge about non-response• Long time between data collection and
analysis• Geographic distribution can be wide
Telephone surveys• Most widely used type• Numbers are selected randomly from a phone
book or by generating random numbers (RDD: (Random Digit Dialling)
• Problems include unlisted numbersLandline coverage is decreasing so increasing bias against the young (no directory for cell phones)
• Geographic distribution can be wide• Data collection period can be short• Questions must be short and simple
Face-to-face surveys
• Cost is high• Data collection period is long• Geographic distribution must be clustered• Good rapport• Take a long time• Good control and quality of responses• Sensitivity issues fair quality
Internet• Low cost (no paper, no data entry costs)• data collection is quick• Geographic distribution may be wide• Questionnaires may be complex because
the skips are programmed in • Pop-up instructions, videos, voice-overs,
animation are available to make it more fun and dynamic
• If self-selected, results may be biased.