A researcher conducted a study to learn how men and women behave when they learn someone is attracted to them, and whether this is influenced by whether they are in an exclusive dating relationship or not. The researcher's confederate followed the same procedure for each individual who sat at a particular seat during the lunch hour. After the individual had been seated for 10 minutes, the confederate approached the individual and said, "my friend [pointing to a table at the other side of the crowded cafeteria] is really interested in you but hasn't had the nerve to say anything to you yet, so I am." The confederate then looked over to the other side of the cafeteria and said, "Oh, she/he saw me. I better go." The confederate then left the table.

At the next table, the researcher counted how many times the individual looked over to the other side of the cafeteria during the next 10-minute period. After 10 minutes, the researcher approached the individual, explained the research project, and asked whether the individual suspected anything. The researcher also asked individuals if they are currently in an exclusive dating relationship or not and recorded their answer. The researcher also recorded the individual's gender and asked permission to use their data for the research.

1			What type of research study was conducted? Explain your answer.
2			Identify the dependent variable and the measurement scale used for the dependent variable.
3			Explain whether you think reactivity is a problem in this research study.
4			Explain how observer bias or expectancy effects could be problems in this research study.