CPP Research Methods & Evidence-Based Practice 2

Question 1

Which sampling method divides a population into subgroups and randomly selects from each to ensure representation?

Accepted Answer

Stratified random sampling

Answer

Stratified random sampling divides the population into homogeneous subgroups (strata) and samples proportionally from each.

Question 2

A parking manager conducts a study where participants know they are being observed. What bias is most likely to occur?

Accepted Answer

Hawthorne effect

Answer

The Hawthorne effect occurs when subjects change their behavior because they know they are being observed.

Question 3

Which data type best describes parking occupancy rates expressed as percentages?

Accepted Answer

Ratio

Answer

Occupancy rates are ratio data because they have a true zero point (0% occupancy) and equal intervals between values.

Question 4

A CPP candidate wants to compare parking utilization across five facilities using a single statistical test. Which is most appropriate?

Accepted Answer

One-way ANOVA

Answer

One-way ANOVA compares means across three or more independent groups simultaneously.

Question 5

In a parking demand study, the term 'validity' refers to:

Accepted Answer

Whether the measure actually captures what it is intended to measure

Answer

Validity refers to the degree to which a research instrument measures what it claims to measure.

(CPP) Certified Parking Professional Practice Test