BS Research Methods and Statistics 2

Question 1

What is the difference between qualitative and quantitative data?

Accepted Answer

Qualitative data describes categories; quantitative data uses numbers

Answer

Qualitative data uses numbers; quantitative data describes categories

Answer

Both types use numerical measurements

Answer

Both types rely on descriptive observations

Question 2

Which sampling method ensures every member of a population has an equal chance of selection?

Accepted Answer

Simple random sampling

Answer

Convenience sampling

Answer

Purposive sampling

Answer

Quota sampling

Question 3

What is a double-blind study?

Accepted Answer

Neither the participants nor the researchers know who is in the treatment group

Answer

Only participants do not know their group assignment

Answer

Only researchers do not know group assignments

Answer

Both groups receive the same treatment

Question 4

What does the term 'replication' mean in scientific research?

Accepted Answer

Repeating an experiment to verify results

Answer

Copying data from another study

Answer

Duplicating a sample within the same trial

Answer

Increasing the sample size mid-study

Question 5

Which statistical test is commonly used to compare the means of two independent groups?

Accepted Answer

Independent samples t-test

Answer

Chi-square test

Answer

ANOVA

Answer

Pearson correlation

Question 6

What is an operational definition in research?

Accepted Answer

A precise description of how a variable will be measured

Answer

The hypothesis restated in simple terms

Answer

The procedure for selecting participants

Answer

A summary of prior research findings