While Studying Communicable Diseases, a PHN Learns That the Main

question 9

Multiple Choice

While studying communicable diseases, a PHN learns that the main objective is to control the spread of disease by:

• A)Changing the environment.
• B)Activating the agent.
• C)Increasing host resistance.
• D)Both A and C.

---

Definitions:

Alternative Hypothesis

A statement that contradicts the null hypothesis and is tested to determine if there is evidence to support it.

Mean Difference

Mean difference, also known as the average difference, refers to the arithmetic mean of differences between paired observations in two sample sets.

Same Individuals

Referring to using the same group of subjects or samples in different conditions or periods of a study or experiment.

Matched Pairs

A study design in which subjects are paired based on certain characteristics, with one subject from each pair receiving each treatment.