SIPs

question 39

Multiple Choice

SIPs:

• A)are state implementation plans for air quality standards.
• B)are enforced by the state governments.
• C)need not have EPA approval.
• D)none of the above

---

Definitions:

Randomly Assigned

A method used in experiments where participants are allocated to different groups or conditions in a way that is determined by chance.

Control

The capacity to shape or guide the actions of individuals or the progression of situations.

Operational Definition

A clear, precise description of a variable in terms of the processes or operations used to measure or manipulate it.

Variables of Interest

Elements or conditions that researchers aim to explore or measure within a study to determine their effects on the outcomes.