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

question 33

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:
-Is the researcher able to conclude that she has developed a reliable and valid measure of friendliness?

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Definitions:

Emperor of the West

Historically refers to the ruler of the Western Roman Empire, specifically after its division from the Eastern Empire.

Honorius

A Roman Emperor of the West (395-423 AD) known for his reign during the period of the empire's decline in the face of Visigothic invasions and internal strife.

Constantinople

The historical name for the modern city of Istanbul from its founding in 330 AD until the Ottoman conquest in 1453, serving as the capital of the Byzantine Empire.

Milan

A city in Northern Italy, recognized as a leading global fashion and design capital, with a rich history in art and architecture.