Question 1

Which of the following best describes the primary purpose of learning statistics in health sciences practice?

Accepted Answer

To better understand and interpret research relevant to disease prevention and risk factors

Question 2

In the research process, which step comes immediately after defining the research question?

Accepted Answer

Research design

Question 3

A study aims to compare the effects of two diets on cholesterol levels among adults. Which type of variable is 'cholesterol level'?

Accepted Answer

Quantitative (numerical)

Question 4

Which of the following is an example of a qualitative (categorical) variable?

Accepted Answer

Type of diet (vegetarian, vegan, omnivore)

Question 5

A researcher collects data on the number of cigarettes smoked per day and the incidence of lung disease. What is the best level of measurement for 'number of cigarettes smoked per day'?

Accepted Answer

Ratio

Question 6

Which statistical analysis type is used to summarize and describe the main features of a dataset?

Accepted Answer

Descriptive statistics

Question 7

A study wants to estimate the proportion of the population suffering from chronic anxiety. Which statistical analysis is most appropriate?

Accepted Answer

Inferential statistics

Question 8

Which of the following is NOT a component of the research process as outlined in the course materials?

Accepted Answer

Patient diagnosis

Question 9

A researcher wants to study the relationship between hours of exercise per week and BMI among university students. What is the best type of variable for 'hours of exercise per week'?

Accepted Answer

Quantitative (numerical)

Question 10

Which of the following is an example of an ordinal variable?

Accepted Answer

Pain severity rated as mild, moderate, or severe

Question 11

A group of researchers wants to identify lifestyle habits associated with sports injuries. They collect data on diet, exercise, and sleep patterns. What is the main objective of this study?

Accepted Answer

To identify risk factors associated with sports injuries

Question 12

Which of the following best describes inferential statistics?

Accepted Answer

Drawing conclusions about a population based on sample data

Question 13

A study measures the effect of a new drug on blood pressure. The mean blood pressure in the treatment group is 120 mmHg, and in the control group is 130 mmHg. What statistical test would be most appropriate to compare these means?

Accepted Answer

t-test

Question 14

Which formula would you use to calculate the mean of a dataset with $$n$$ values $$x_1$$, $$x_2$$, ..., x_n$$?

Accepted Answer

$$\frac{\sum_{i=1}^{n} x_i}{n}$$

Question 15

A researcher wants to know if there is a significant difference in recovery times between two groups of patients. Which research component is most relevant to this objective?

Accepted Answer

Statistical analysis

Question 16

Which of the following is a key step to ensure success in this course, according to the syllabus presentation?

Accepted Answer

Read the assigned chapter before each class

Question 17

Which of the following variables is best measured at the nominal level?

Accepted Answer

Ethnicity of patients

Question 18

A study collects data on the region where patients live (North, South, East, West). What is the best level of measurement for this variable?

Accepted Answer

Nominal

Question 19

Which of the following is NOT a recommended use of Moodle in this course?

Accepted Answer

Ignoring course announcements

Question 20

A study wants to compare the average number of hours slept by students in three different faculties. Which statistical analysis is most appropriate?

Accepted Answer

ANOVA

Applied Statistics for the Health Sciences: Introduction and Foundations

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