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quiz Education Sciences · 10 questions

Research Methodology Essentials

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1

Which sampling method ensures each element of the population has an equal chance of selection?

2

In a Likert scale questionnaire, what is the primary purpose of recoding reverse‑scored items before computing total scores?

3

A researcher plans a study with a significance level of 0.05, power of 0.90, and expects a medium effect size. Which parameter is NOT directly involved in calculating the required sample size?

4

When reporting the ethical principles of a study, which of the following pairs correctly matches a principle with its definition?

5

A study uses a questionnaire with a 5‑point Likert scale and wishes to compare mean scores between two independent groups. Which statistical test is most appropriate assuming normality?

6

Which of the following best describes the difference between a variable's operationalization and its measurement scale?

7

In the context of research ethics, what is the primary purpose of obtaining informed consent from participants?

8

A researcher plans a correlational study and decides to use Pearson's correlation. Which prerequisite must be verified before applying this test?

9

Which statement accurately reflects the role of the IA (Artificial Intelligence) in the research process according to the guidelines?

10

When constructing a database for analysis, why is it recommended to avoid spaces and special characters in variable names?

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