Exhibit 19-1

question 73

Multiple Choice

Exhibit 19-1.A researcher wished to determine if there was a difference in the college aptitude examination scores of traditional and nontraditional undergraduate students.The researcher selected p = .05 as the level for rejecting the null hypothesis.The researcher obtained a mean score of 52 for nontraditional students and a mean score of 40 for the traditional students.Statistical analysis indicated that the difference in means was significant at the .05 level.
-Refer to Exhibit 19-1.The null hypothesis for this study would be

• A) nontraditional college students will score higher on a college aptitude test than will traditional college students.
• B) traditional college students will score higher on a college aptitude test than will nontraditional college students.
• C) the age of students will have a significant effect on their performance on a college aptitude test.
• D) there is no significant difference in the performance of traditional and nontraditional college students on a college aptitude examination.

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Definitions:

Eyewitness Identification

A process in criminal justice systems where victims or witnesses identify suspects through line-ups, photo arrays, or show-ups.

Recognition

The identification of a thing or person from previous encounters or knowledge.

Algorithm

A step-by-step procedure or formula for solving a problem.

Sunk Cost Effect

The phenomenon where a person is more likely to continue an endeavor once an investment in money, effort, or time has been made.