Question

Below, you will find short descriptions of 3 studies. For each one, provide the following:

The conceptual hypothesis.

The research hypothesis.

The null hypothesis.

NOTE: The hypotheses are not to be identified within the existing text below, you have to CREATE them based on the information within each description.”

A. A research team is interested in the relationship between personality and social interaction. With a survey, an investigator records various social and personality variables of a group of participants. Among the variables, the investigator specifically evaluates the correlation between Extraversion score and number of Facebook friends.

B. A research team is interested in the relationship between arousal and performance. An investigator administers, to 4 groups of participants, 4 doses of caffeine (0mg, 40mg, 80mg, 120mg). Afterward, the investigator measures performance on a reaction-time task where participants must hit a button as quickly as possible when a signal is given.

C. A research team is interested in the relationship between gender and aggression. An investigator observes children on the schoolyard playground. The investigator records the number of fights that each child engages in. The investigator then compares the girls and boys, on the total number of fights they engage in.

Answer 1

A. The conceptual hypothesis: There is a relationship between personality and social interaction.

The research hypothesis: There is a relationship between extravesion and number of Facebook friends.

The null hypothesis: There is no relationship between extravesion and number of Facebook friends.

B. The conceptual hypothesis: There is a relationship between arousal and performance.

The research hypothesis: There is a relationship between caffeine consumption and reactions time..

The null hypothesis: There is no relationship between caffeine consumption and reaction time.

C. The conceptual hypothesis: There is a relationship between gender and aggression.

The research hypothesis: Grnder has a significant impact on the number of fights among children.

The null hypothesis: Gender has no significant impact on the number of fights among children.