Maisie has an extreme fear of heights. when she registers for classes at college, she makes a point of signing up for classes that are held on the first floor of the buildings. this becomes a problem when one class that she is required to take is only offered on the fifth floor of the main classroom building. maisie might be diagnosed as having

Maisie can be diagnosed with having a specific phobia.

Explanation:

Specific phobia is characterized by the presence of a persistent and recurring fear that is excessive and unreasonable to a specific object or situation that triggers a strong anxiety reaction. That is, specific phobia is characterized by a fear of a certain thing, but this fear has no reason to exist and is so intense that it begins to disrupt a person's normal activities. An example of this can be seen in the question above, where Maisie is so afraid of heights that it gets in the way of attending compulsory classes, and that fear has no reason to exist.

answer; when one group has an extremely high score at pretest;

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