Social Capital and Health Care Experiences among Low-Income Individuals
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 | |||
| Question | Answers | Possible Points | |
| 1. | Is the study population identified and described? Are eligibility criteria specified? | – | – |
| Study Population | 5 | ||
| Eligibility criteria | 5 | ||
| 2. | Dependent variable | 6 | |
| 3. | Independent variable | 6 | |
| 4. | What approach do the authors use to establish content validity?
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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 |
6 | |
| 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? | –
|
– |
| Sampling plan. | 5 | ||
| 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? | – | – |
| Stratification | 1 | ||
| Consecutive sampling | 1 | ||
| 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? | – | – |
| Recruitment | 4 | ||
| Potential biases | 4 | ||
| 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
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| 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.” |
5 | |
| 17. | Does the sample support inferences about external validity? To whom can the study results reasonably be generalized? | – | – |
| External validity | 5 | ||
| Generalizability | 5 |
Source: Nursing Research: Generating and Assessing Evidence for Nursing Practice, 9th edition, p. 289.
