Quartz and Feldspar Are Both Silicates Formed from a Three-

question 10

Essay

Quartz and feldspar are both silicates formed from a three- dimensional framework of silica tetrahedra, but they are completely different minerals. Describe three ways in which they differ.

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Definitions:

Reliability Equation

A formula used to calculate the consistency or stability of scores obtained from tests measuring the same construct.

Reliability

Reliability refers to the consistency of a measure or instrument; a reliable instrument yields similar results under the same conditions over multiple trials.

Validity

The degree to which an assessment accurately measures its purported content.

Reliability

The degree to which an assessment tool produces stable and consistent results.