Multiple Choice Question Bank (Full Set)

What best describes data?

B. Information collected to answer a question.

Which statement is TRUE?

C. A representative sample is required to estimate population parameters.

What statement about Samples and Census is INCORRECT?

B. Samples give more accurate estimations than a census.

Which statement about a Sampling Frame is INCORRECT?

C. The collection of units from the population that are measured.

To measure health and wellbeing, what is the sample of units in the NZ survey?

B. 10,000 people from the households chosen

What is the population of measurements in the NZ survey?

B. Health and wellbeing of all NZ citizens.

What is the margin of error for a political poll that selects 2500 voters?

C. 2%

In a survey showing 42% support with ±4% MOE, what is correct?

D. 38–46% of the population likely support it.

Which statement about margin of error is correct?

C. It describes uncertainty in a sample estimate.

Which is a probability sampling method?

D. Simple random.

Which statement about simple random sampling is FALSE?

A. Less representative than convenience sampling.

Selecting every 5th unit is:

A. Systematic.

Sampling singles and non-singles separately is:

C. Stratified.

Surveying people in the street at lunchtime is:

A. Convenience sampling.

Which statement about sampling error is FALSE?

D. Caused by poor survey design.

Which is NOT a non-sampling error?

B. Margin of error.

Coverage error occurs when:

A. Wrong sampling frame used.

Low response rate leads to:

B. Non-response bias.

Missing people without internet access is:

B. Coverage error.

Non-response bias occurs when:

C. Selected people don’t respond.

Which is categorical ordinal?

A. T-shirt size.

Which is continuous?

B. Beak length.

Which is discrete?

C. Number of elephants.

Which is continuous?

D. Height.

How much can wording affect answers?

C. A lot.

Which is a closed question?

A. Choose from options.

Main issue with open questions?

C. Hard to summarise.

Why might someone lie about smoking?

C. Desire to please.

Poorly defined question leads to:

D. Unintentional bias

Which shows non-response bias?

C. People don’t respond

Validity means:

C. Measures correct thing.

Reliability means:

A. Consistency.

IQ test for happiness violates:

B. Validity.

Using a short ruler for long distance violates:

D. Reliability

Randomisation ensures:

C. Balance of confounders.

Which statement is FALSE about randomisation?

D. Ensures generalisation.

Confounding variable is:

C. Affects both variables.

Advantage of experiments?

C. Shows causation.

Students attend tutorials and get better grades. Issue?

B. Confounding.

Interaction variable:

B. Changes effect.

Hawthorne effect is:

C. Behaviour change due to being observed.

Purpose of control group:

B. Compare no treatment.