Dr. Fer Endly is developing a questionnaire to measure sociability. She defines the construct as the skills to be comfortable in a group setting. She writes items for her questionnaire and inspects them to be sure that each addresses the construct. After that, she administers her measure to 100 students taking classes to learn catering and 100 students who have been identified as socially anxious. All the students also get a questionnaire measuring friendliness and a questionnaire measuring conscientiousness. Dr. Endly finds that the Cronbach Alpha for her sociability measure is .84. She also finds that the socially anxious students score significantly lower on her sociability measure than did the catering students. Finally, she finds that her sociability measure correlates .63 with friendliness and .03 with conscientiousness.

1. By inspecting the items to make sure they pertained to her construct, Dr. Endly was trying to establish the _____________________ validity of her measure.

2. By determining that the catering school students scored higher on sociability than the socially anxious students, Dr. Endly has established ____________________ validity for her measure.

3. According to the data, this measure of sociability has adequate _______________________ reliability.

4. In this study, the .03 correlation of the sociability measure and the conscientiousness measure is a way to demonstrate ____________________ validity.

5. In this study, the .59 correlation of the sociability measure with friendliness shows ______________________ validity.