Figure: A Researcher Was Interested in Developing a Reliable and Valid

question 63

Essay

Figure:
A researcher was interested in developing a reliable and valid measure of friendliness.That is,she wanted to distinguish between friendly and unfriendly people using her questionnaire.To determine whether she developed a good measure (called "Friend"),she administered her "Friend" questionnaire to a group of 300 people twice (Friend-Time1 and Friend-Time 2),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:
-What correlation coefficient value indicates the "Friend" measure has good convergent validity?

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Definitions:

Eighteenth Century

A period of time that encompasses the years 1701 to 1800, marked by significant developments in science, philosophy, and politics.

Rights of Citizenship

The legal rights and privileges granted to individuals by a state, including voting, freedom of speech, and the right to privacy.

Native Americans

Refers to the indigenous peoples of the United States, including their cultures, histories, and societies.

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