Cognitive Impact of Chronic Diseases
Research Article Critique, Part Two
The Cognitive Impact of Chronic Diseases on Functional Capacity in
(Kim, Park, & An 2019)
Questions 1 – 9: Sample. (For help with these questions, refer to
chapters: 9 & 12)
1. What sampling method or plan was used by the authors in this study?
a. Simple random sampling
b. Systematic sampling
c. Little information is given about the sampling method
d. Network sampling
2. According to Grove & Gray (2019), what are the potential biases of convenience sampling?
a. This is a strong probability sampling method with very little potential for bias.
b. This method is used when an ordered list of all members of the population are available, and provides a random but not equal chance for inclusion in the study.
c. This method provides little opportunity to control for bias because subjects are included in the study merely because they happen to be in the right place at the right time.
d. This method is specific to the individuals who were recruited and the information gained cannot be generalized to others who don’t share these types of experiences.
3. What was the final sample size reported by the authors for this study?
a. 90 participants
b. 115 participants annually
c. 82 participants per month
d. 28 participants
4. Was a power analysis conducted? If so, which statement best describes the results of the power analysis?
a. The authors mention that a power analysis was conducted using a power of 0.8, an alpha value of 0.5, and an effect size of 0.2
b. The authors mention that a power analysis was conducted, and 90 participants were needed.
c. The authors do not report that a power analysis was conducted.
d. The authors mention that a power analysis was conducted using a power of 0.8, and alpha value of 0.5, and a moderate effect size.
5. Which of these statements would be considered to be specific inclusion criterion for the sample in the research article?
a. Participants had heart failure.
b. Participants were able to read and write.
c. Participants had diabetes or hypertension.
d. Participants had chronic conditions.
6. Which of these statements would be considered to be exclusion criterion specifically identified by the author for the sample in the research article?
a. Participants could not read or write.
b. Participants were less than seventy years old.
c. Participants with a history of heart attack.
d. Participants with a history of cognitive inflicted disorders.