Biostat M3 and M4

Multiple Choice

Which of the following is NOT one of the four levels of measurement?

• Nominal

• Ordinal

• Interval

• Discrete

Open Ended

Why is it important to understand the different levels of measurement when working with data?

Multiple Choice

Which scale of measurement is characterized by categories only, with no order or ranking?

• Nominal scale

• Ordinal scale

• Interval scale

• Ratio scale

Multiple Select

Which of the following are examples of ordinal scales?

• Socioeconomic status

• Class ranking

• Likert scale

• Hair color

Multiple Choice

What is the main difference between interval and ratio scales?

• Ratio scales have a true zero, interval scales do not.

• Interval scales have categories only, ratio scales have order.

• Interval scales have ranked data, ratio scales do not.

• Ratio scales do not have equal intervals, interval scales do.

Multiple Choice

Based on the table, which scales have equal intervals?

• Interval and Ratio

• Nominal and Ordinal

• Nominal and Interval

• Ordinal and Ratio

Open Ended

Explain the difference between demographic analysis and population study.

Multiple Choice

Which of the following tools is used to measure the absolute number of a population or demographic event?

• Count

• Ratio

• Rate

• Ordinal

Multiple Choice

What does the sex ratio represent in demographic studies?

• The number of births in a year

• The relation of males to females in a population

• The frequency of demographic events

• The ranking of population groups

Multiple Choice

Which population measure tool would you use to determine the frequency of new cases of a disease in a population at risk?

• Count

• Ratio

• Rate

• Ordinal

Multiple Select

Which of the following are types of rates used in demographic analysis?

• Incidence

• Prevalence

• Attack Rate

• Case-fatality

Multiple Choice

Which of the following best describes a 'proportion' in population studies?

• The frequency of events in an at-risk population

• The relation of a subgroup to the entire population

• An unchanging number to simplify measures

• Events occurring to a cohort observed through time

Multiple Choice

Which of the following is an example of using a constant in population measures?

• Tracking 1,000 newborns for 5 years

• Birth rate in 2020

• 60 females in a class of 100 students

• Reporting rates per 100,000 population

Multiple Select

Select all correct statements about frequency measures.

• They measure occurrence of events in populations

• They are only used for individual data

• Ratio, Proportion, and Rate are types of frequency measures

• They do not include rates

Multiple Choice

Why is population data considered essential for planning and policy-making?

• Because it helps in understanding population size, structure, and vital events

• Because it is required by law

• Because it is only used for academic purposes

• Because it is collected every year

Multiple Choice

Which of the following statements about the census is correct?

• It is a complete count of the population conducted at regular intervals

• It is a survey conducted only in urban areas

• It is conducted every year

• It only collects economic information

Multiple Select

Which of the following are examples of data collected as institutional records?

• School enrollment

• Hospital admissions

• Employment records

• Birth certificates

Open Ended

Reflecting on today's lesson, which level of measurement do you find most applicable to real-world data collection, and why?