MrO'Hara Has Developed a Test of Mechanical Aptitude

question 84

Multiple Choice

Mr.O'Hara has developed a test of mechanical aptitude.At the beginning of a course in auto mechanics, he gives this test to his students.At the end of the year, he compares students' scores on the test with their actual achievement in his course.What is he probably trying to find out about his test?

• A)Its reliability
• B)Its practicality
• C)Its content validity
• D)Its predictive validity

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Definitions:

Mitotic Spindle

A structure composed of microtubules that separates chromosomes into daughter cells during cell division.

Centromere

The region on a chromosome where two sister chromatids are joined and where the spindle fibers attach during cell division.

Animal Zygote

The initial cell formed when two gamete cells (egg and sperm) are joined by means of sexual reproduction, marking the beginning of a new organism's development.

Haploid Cell

A cell that contains a single set of chromosomes, half the diploid number, typical of gametes.