Embedded Files
Validity
“The degree to which a questionnaire measures what it was intended to measure” (Roopa & Rani, 2012.p. 276)
The relationship between survey response and what they actually think or feel.
Accuracy of the results can be influenced by bias.
Validity of the study results can be questioned if most of the targeted population do not respond to a survey.
Social desirability bias can impact validity when respondent tend to respond to questions so that they are portrayed in a “socially desirable manner”.
Dependent on the characteristics of the sample matching the characteristics of the population being studied if the researcher omits conducting a census prior to the study.
Sampling error occurs when differences exist between the sample and the population.
( Nolte et al., 2015)
There are four types of validity:
Content Validity - used to determine if a tool /test represents “aspects of a given social concept” (p.276)
Face Validity - The researcher estimates whether the item of a questionnaire is appropriate to ensure that the response is received in the way it should be measured.
Criterion Validity - How effective the questionnaire is in predicting the outcome of what is being measured. Responses on the questionnaire are checked using an external criteria.
Construct Validity - This refers to whether the new questionnaire conforms to the hypothesis/ existing ideas of the concepts being measured.
(Roopa & Rani, 2012)
Assumptions of Survey Research
That respondents will be authentic in their responses. The response may not correspond to their actual behavior and be influenced by social desirability (response that will be viewed favorably).
That each response is treated as equal phenomena by grouping particular responses by categories with other individuals’ responses in the sample.(Williams, 1959)
Assuming that the sample is representative of the population that you are studying.
That the researcher has explored the most appropriate way to obtain their results (i.e. exploring option of each type of survey).
Appropriate reminders and time of the survey.
Google Sites
Report abuse