For the Following Question(s): a School Counselor Claims That He

question 62

Multiple Choice

For the following question(s) : A school counselor claims that he has developed a technique to reduce prestudying procrastination in students. He has students time their procrastination for a week and uses this as a pretest (before) indicator of procrastination. Students then attend a workshop in which they are instructed to do a specific warming-up exercise for studying by focusing on a pleasant activity. For the next week, students again time their procrastination. The counselor then uses the time from this week as the posttest (after) measure.
-Suppose the counselor wants to examine whether there is a change of any kind (either an increase or decrease) in procrastination after attending his workshop. What would be the appropriate description of "Population 2" (the population to which the population his sample represents is being compared) ?

• A)People whose posttest scores will be lower than their pretest scores
• B)People whose change scores will be greater than 0
• C)People whose change scores will be 0
• D)People whose change scores will be less than their pretest scores

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Definitions:

Kurtosis

A statistical measure that describes the shape of a distribution's tails in relation to its overall shape, indicating the degree of outlier prominence.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values are from the mean.

Mean

The arithmetic average of a set of values, calculated as the sum of all values divided by the total number of values.

Deviation

The amount by which a single measurement differs from a fixed value such as the mean or expected value.