A Certain Species of Rodent Can Just Tell the Difference

question 43

Multiple Choice

A certain species of rodent can just tell the difference between plain water and water that contains 1 gram of salt per liter of water (a 1% solution) . What does this best illustrate?

• A) an Applied of Fechner's law
• B) the constancy of the Weber fraction
• C) an exception to the rules of signal detection
• D) the difference threshold for this particular rodent

Understand the roles and functions of community-based educational support.

Identify and articulate the various approaches to school and community collaboration.

Recognize the impact of home visitation programs on students, families, and educational outcomes.

Describe the process and significance of advocacy in educational contexts.

---

Definitions:

Raymond Cattell

A British and American psychologist known for his pioneering studies in personality, intelligence theory, and psychometrics.

MMPI-II

The Minnesota Multiphasic Personality Inventory-2, a comprehensive psychological questionnaire designed to assess a variety of psychological conditions and personality attributes.

Scale Purity

Scale purity is a concept in psychometrics referring to the degree to which items on a test measure a single, coherent construct or dimension, contributing to the test's validity.

Discriminant Validity

The degree to which a measure is not correlated with other variables from which it is theoretically supposed to differ.