Daryl Took the College Aptitude Test (CAT) When He Was

question 310

Multiple Choice

Daryl took the College Aptitude Test (CAT) when he was a junior in high school.He attained a very low score on the test and his high school counselor suggested that he look into other options.Daryl went to college anyway and earned a place on the Dean's List every semester.At his 5ᵗʰ-year high school reunion, former students had a chance to retake the CAT.Daryl again earned a very low score.Based on Daryl's experience it would be fair to conclude that the CAT has:

• A)low reliability, but high validity
• B)low reliability, and low validity
• C)high reliability, but low validity
• D)been poorly standardized

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Definitions:

Pre-T Cells

Immature T cells that are in the process of developing their specificity and functionality in the thymus.

Pre-B Cells

Immature B cells undergoing maturation in the bone marrow, important for the adaptive immune system.

Negative Selection

A process in immunology where self-reactive T or B cells are eliminated during development, preventing autoimmune diseases.

Positive Selection

A process in the immune system whereby cells that recognize a foreign antigen with high affinity are selectively proliferated.