Read the article titled: “Social Capital and Health Care Experiences among Low-Income Individuals” (attached in the Articles section). Critique the study’s sampling design by answering the attached questions (make sure not to answer with a yes/no; elaborate on each answer by describing what the authors did). Please use the attached word document template to add your answers to.
|Assignment 3 Rubric & Answers – Perry|
|1.||Is the study population identified and described? Are eligibility criteria specified?||–||–|
|4.||What approach do the authors use to establish content validity?
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Social Capital and Health Care Experiences among Low-Income Individuals
Content validity is the “degree to which an instrument has an appropriate sample of items for the construct being measured and adequately covers the construct domain.” To ensure a “content-valid” instrument, researchers should start with a conceptualization of the construct. This can be based on:
· First-hand knowledge
· Literature review
· Expert consultations
· Preliminary qualitative studies
|5.||What type of sampling plan was used? Would an alternative sampling plan have been preferable? Was the sampling plan one that could be expected to yield a representative sample?||–
|Alternative sampling plan||2|
|Sampling plan yielding representative sample||2|
|6.||If sampling was stratified, was a useful stratification variable selected? If a consecutive sample was used, was the time period long enough to address seasonal or temporal variation?||–||–|
|7.||If cluster sampling was utilized, what were the clusters and how was sampling done within clusters?||2|
|8.||How were people recruited into the sample? Does the method suggest potential biases?||–||–|
|9.||Did some factor other than the sampling plan affect the representativeness of the sample?||5|
|10.||Are possible sample biases or weaknesses identified by the researchers themselves?||5|
|11.||Are key characteristics of the sample described (e. g., mean age, percent female)? If yes, please provide detailed information on sample characteristics.||12|
|12.||Was the sample size justified on the basis of a power analysis or other rationale?||5|
|13.||What approach do the authors use to check for internal reliability?||5|
|14.||What approach do the authors use to establish interrater reliability?||2
|15.||What approach do the authors use to establish test-retest reliability?||2|
|16.||What approach do the authors use to establish discriminant validity?
Discriminant validity is “the ability to differentiate a construct from other similar constructs.”
|17.||Does the sample support inferences about external validity? To whom can the study results reasonably be generalized?||–||–|
Source: Nursing Research: Generating and Assessing Evidence for Nursing Practice, 9th edition, p. 289.
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