If a Researcher Manipulates One of the Variables and Tries

question 22

Multiple Choice

If a researcher manipulates one of the variables and tries to determine how the manipulation influences other variables, the researcher is conducting a(n)

• A) observational study.
• B) experimental study.
• C) independent study.
• D) confounding study.

---

Definitions:

Queue

A line or sequence of people, vehicles, or other entities waiting for service or processing, often analyzed to improve efficiency in operations management.

Multichannel Single-Phase System

This typically refers to a system that uses multiple channels to engage with customers or to perform a task, but operates in a single phase or stage of the process.

Sequential Processing Stages

Refers to the arrangement where tasks in a process are completed one after another in a fixed order.

First-In, First-Served

A service policy by which the requests of customers or the processing of items are attended to in the order that they arrive or are submitted, without other prioritizations.