Quiz 2_Practical Research 2

A researcher wants to measure students’ level of stress using a Likert-scale questionnaire. What type of instrument is being used?

• Interview guide

• Standardized test

• Self-report survey

• Observation checklist

A teacher-researcher wants to ensure her questionnaire is reliable. Which of the following methods should she use?

• Expert validation

• Pilot testing and Cronbach’s Alpha

• Interview validation

• Face validity check only

A researcher distributes an online survey via Google Forms to all Grade 12 students. What data gathering technique is used?

• Snowball sampling       

• Document analysis

• Web-based survey

• Observation

In a study comparing the test scores before and after an intervention on the same group of students, which statistical test is most appropriate?

• Independent t-test

• One-way ANOVA

• Paired t-test

• Pearson r

A research instrument was reviewed by three experts who rated each item’s relevance. What process is this?

• Reliability testing

• Content validity

•  Construct validity

• Normality testing

A researcher copied an existing questionnaire from a published study. Before using it, what is the MOST ethical step?

• Modify it without permission

• Use it directly

• Ask permission from the original author

• Change the title only

Which data gathering procedure ensures that respondents understand the instructions clearly before answering?

• Informed consent

• Orientation or briefing

• Debriefing

• Encoding

A study aims to identify whether grit predicts academic performance. Grit is ordinal and academic performance is ratio. What statistical treatment should be used?

• Frequency count

• Pearson correlation

• ANOVA

• Chi-square

If a questionnaire yields consistent results when administered twice, it demonstrates:

• Validity

• Reliability

• Accuracy

• Sensitivity

A researcher uses 5-point Likert Scale responses (Strongly Agree to Strongly Disagree). What kind of data is produced?

• Nominal

• Interval

• Ordinal

• Ratio