A researcher is interested in the effect of going through a terrorist attack on the attitude of police officers about the goodness of people in New York City. After the attack, police may hold more positive attitudes about people (because of various acts of heroism and altruism exhibited by residents)or more negative attitudes because of negative outcomes (looting and dishonesty after the event). What type of hypothesis should the researcher make?
A)directional
B)significant
C)percentile
D)nondirectional

Question

Quizplus · Accepted Answer

The researcher is not sure whether the effect of going through a terrorist attack will result in a positive or negative attitude towards people. Therefore, they should make a nondirectional hypothesis. A directional hypothesis would assume that the effect will be either positive or negative, but not both. A significant hypothesis refers to the level of statistical significance, not the directionality of the hypothesis. A percentile hypothesis is not a valid type of hypothesis.

A Researcher Is Interested in the Effect of Going Through