Research Methodology: Study Design, Sample Size Calculation, Validity and Reliability

Running head: RESEARCH METHODOLOGY 1
Research Methodology
[Name of Student}
[Institutional Affiliation]
[Date of Submission]

RESEARCH METHODOLOGY 2
SECTION (A): One Best answer
1. Quasi experimental study is suitable to?
(b). When randomization is impossible
2. Statistical Analysis in a cross sectional study
(c). has its own strength to be compared with other study design.
3. Randomized Block Design is utilized when the confounder is?
(c). adjusted based on randomization procedure
4. Purposive sampling is?
(c). recommended if researcher has logic issues.
5. Study population is?
(a) Is a population in which inference of the data will be concluded
6. Operational definition of variable is?
(a). an explanation on how the variable is measured.
7. Sample size calculation depends on?
(a) Study setting
8. In order to calculate sample size based on objective “to determine prevalence of any
disease”, the most appropriate reference prevalence value would be from the study which
was conducted
(b). among respondents with almost similar biological characteristics with the
current study

RESEARCH METHODOLOGY 3
9. Two-tailed hypothesis is appropriate for determining
(d). significance difference of hemoglobin between gender
10. Sample size calculation is not necessary in study which involve
(c). caretakers of the patients
11. Objectives of the study is determined by
(c). Research questions
12. One of characteristics of research objectives include:
(b) It is well understood
13. Preliminary information that need to be understood for sample size calculation include?
(c). i, ii, iii, v.
14. Which of the following actions will reduce the sample size
(a) By increasing the beta error to 25%
15. In constructing questionnaires, the following issues need to consider EXCEPT
(d) Confidence interval
SECTION (B): Answer ALL questions
Question 1.
a. State the most appropriate tittle for the study above
Title: “Does Carica papaya (papaya leaves) increase platelets level in patients with acute
dengue fever?”