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:

Diversification Strategy

A business approach that involves entering into new markets or introducing new products or services to spread risk and opportunities for growth.

Reduce Risks

Strategies or actions taken to lower the probability of loss or the impact of adverse outcomes.

Product Development

Product development is the process of bringing a new product to market, including the conception, design, and manufacture of products that meet consumer needs and preferences.

Market Penetration

A measure of the amount of sales or adoption of a product or service compared to the total theoretical market for that product or service.