,Separated by Six Months

question 39

Essay

,separated by six months.At the second testing session she also administered a similar questionnaire called "Nice," which previous research has shown to be a valid measure of people's ability to get along with people and to make friends.She also administered a questionnaire designed to measure art ability,which she predicted to be unrelated to friendliness.She observed the following correlations among the measures: Is the researcher able to conclude that she has developed a reliable and valid measure of friendliness?

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Definitions:

Oxidation State

The measure of the degree of oxidation of an atom in a substance, indicating the number of electrons lost or gained by an atom.

Reaction

A chemical process in which substances interact to form new products typically characterized by a change in properties.

Oxidation State

A numerical value that signifies the total electrons an atom gains or sheds to establish a chemical bond with a different atom.

Reduction

A chemical reaction in which a molecule gains electrons, often accompanied by a decrease in oxidation state.