test 1, survey research Flashcards
Identify the steps in the survey research process.
1. Data collection (1) Sampling (2) Questionnaire design or survey instrument design) (3) Conducting the survey Survey modes: (a) mail (b) telephone (c) in-person (d) Internet 2. Data entry and data processing 3. Data analysis 4. Survey report (description of the survey process, major findings, conclusions, etc.; diagrams, charts, tables, etc.will be used)
Define and find examples of sample.
part” or subset of population
What are the major similarities between census and survey?
Both census and survey use the same basic techniques and methods for data collection, data entry and processing, data analysis, and findings reporting.
Discuss the widespread use of sampling and survey by other academic disciplines and professions.
costco, schools, marketing
When can errors occur in the survey process?
- Using “part” (sample) to estimate or project
- Using a “whole”( population )to estimate or project
- Respondent answers are not accurate measures of the characteristics of the respondents.
- Sample does not represent population.
Discuss various types of biases in surveys.
- Incomplete sample frame: Sample frame does not include all the people to be sampled.
- Sampling is not random.
- Incomplete answers, non-response, and low completion rate.
Differentiate between random error and systematic error in sampling Find real life examples for each.
sampling is concerned with the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population
systematic error is called a bias ex. is an internet survey
Define sampling.
sampling is concerned with the selection of a subset of individuals from within a statistical population to estimate characteristics of the whole population
What is the relationship between a sample and the population
a sample is a subset of a population
Identify and find examples of the major sampling methods. And discuss their appropriate uses.
1 stage sampling
a. Simple random sampling:
b. . Systematic sampling
c. Stratified sampling
2. multistage sampling
a. Area probability sampling
b. Random-digit dialing (RDD)
Why is stratified sampling needed
When the distribution of the target population on a particular indicator (e.g., gender, grade level) is known, stratified sampling can give all sub-groups equal representation in the sample through unequal weighting of different strata
What does the chance of selection refer to?
Each individual in the population of interest has an equal likelihood of selection.
What are the factors affecting sample quality?
Feasibility
Cost
Precision (how large a sampling error can be tolerated)
What are the characteristics of a good sample frame?
Comprehensiveness (must include all the people to be sampled)
A person’s probability of selection (to be selected) can be calculated.
Efficiency (the people to be sampled can be found easily and cost-effectively)
Identify the major causes of non-response.
Interviewee cannot be reached.
Interviewee refuses to answer questions.
Interviewee cannot provide data due to difficulties (e.g., illness, language problems, etc.)
sensitive questions
How samples are drawn in Systematic sampling
- Decide sample size.
- Divide the total population into equal “blocks” by the sample size.
- Select a random number within the boundaries of one block and use it SYSTEMATICALLY throughout for ALL BLOCKS.
Under what circumstances do people are most likely to respond to a survey?
interest and relevance
How to calculate response rate
people who complete the survey / total number of people surveyed.
Generally speaking, which groups (in terms of age, education, immigration status, etc.) are more likely to respond in surveys?
older educated natives
Generally speaking, which area (urban vs. suburban) tends to have a higher response rate?
suburban
How to reduce non-response in interviewer-administered surveys?
make appointments, know your timing
Discussthe nature and effects of non-response
Non-response error is hard to measure. There is still no clear evidence on when and how much non-response will or will not affect survey estimates.
The effect of non-response on one variable can be different than for others in the same survey.
No one knows how biased non-response is, but you have to assume it is biased.
Discuss the merits and weaknesses of internet surveys.
most biased
reach only part of the population
people have multiple email accounts
cheap can get to a lot of people