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Forming Hypotheses and Making Decisions
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. Please CREATE the hypotheses 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.
In your document, please use the letters and numbers to organize your answers (e.g. “A1. The conceptual hypothesis is… A2. The research hypothesis is… etc.”)
Below, I list a handful of common aphorisms about human behavior. Pick ONE and answer the following questions:
How would you restate the aphorism as a Conceptual Hypothesis?
How would you state your Conceptual Hypothesis as a Research Hypothesis?
How would you operationalize/measure your variables, in order to empirically test the aphorism?
What empirical support exists, regarding this aphorism? Bring in some information from outside the class. Find a study that is relevant to the aphorism and very briefly describe what the authors found.
Absence makes the heart grow fonder.
All work and no play makes Jack a dull boy.
Birds of a feather flock together.
Hell hath no fury like a woman scorned.
Ignorance is bliss.
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