With a Reliability Coefficient of

question 16

Multiple Choice

With a reliability coefficient of .81, using classical test theory we would interpret that the: ​

• A)amount of error variance to observed variance is 81 percent.
• B)amount of true variance to observed variance is 81 percent.
• C)instrument has good enough reliability.
• D)instrument's validity coefficient would be 0.81 ² .

---

Definitions:

Variance

A statistical measure of the distribution's spread, variance quantifies how much the numbers in a data set differ from the mean (or average) of that set.

Relatively More

A comparative term indicating a greater amount, number, or degree in comparison to another or others.

Electronegativity

A measure of the tendency of an atom to attract a bonding pair of electrons.

Periodic Table

A tabular arrangement of chemical elements organized by their atomic number, electron configuration, and recurring chemical properties.