Week3-Assignment3-Template (1)

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University of Texas, Rio Grande Valley *

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6310

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Statistics

Date

Apr 3, 2024

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docx

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2

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Assignment 3 Rubric & Answers Note that not all the questions may be applicable. For example, if a question asks about cluster sampling, and cluster sampling was not utilized, you just indicate that in your answer. Question Answers Possible Points 1. Title of the article, journal name, your name 6 2. Is the study population identified and described? Are eligibility criteria specified? - - Study Population 5 Eligibility criteria 5 3. What approach do the authors use to establish content validity? 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 4. 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 5. 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 6. If cluster sampling was utilized, what were the clusters and how was sampling done within clusters? 2
Assignment 3 Rubric & Answers Note that not all the questions may be applicable. For example, if a question asks about cluster sampling, and cluster sampling was not utilized, you just indicate that in your answer. 7. How were people recruited into the sample? Does the method suggest potential biases? - - Recruitment 4 Potential biases 4 8. Did some factor other than the sampling plan affect the representativeness of the sample? 5 9. Are possible sample biases or weaknesses identified by the researchers themselves? 5 10. Are key characteristics of the sample described (e. g., mean age, percent female)? If yes, please provide detailed information on sample characteristics. 12 11. Was the sample size justified on the basis of a power analysis or other rationale? 5 12. What approach do the authors use to check for internal reliability? 5 13. What approach do the authors use to establish interrater reliability? 2 14. What approach do the authors use to establish test-retest reliability? 2 15. What approach do the authors use to establish discriminant validity? Discriminant validity is “the ability to differentiate a construct from other similar constructs.” 5 16. Does the sample support inferences about external validity? To whom can the study results reasonably be generalized? - - External validity 5 Generalizability 5 17. What is your assessment of this article in terms of helping you to understand the concepts of validity and reliability? Please provide your opinion. 6 Source: Nursing Research: Generating and Assessing Evidence for Nursing Practice, 9th edition, p. 289.
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