Astronomy quiz question: in the moon's umbra

Astronomy 210 Quiz 3, fall semester 2011
Cuesta College, San Luis Obispo, CA

What type of eclipse is seen by an observer on the side of Earth facing the sun, located in the umbra of the moon?
(A) An annular solar eclipse.
(B) A partial solar eclipse.
(C) A total solar eclipse.
(D) A total lunar eclipse.
(E) A partial lunar eclipse.

Correct answer: (C).

Section 70158
Exam code: quiz03sO1L
(A) : 2 students
(B) : 6 students
(C) : 17 students
(D) : 11 students
(E) : 0 students

Success level: 52% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.52

Section 70160
Exam code: quiz03N1rE
(A) : 4 students
(B) : 5 students
(C) : 14 students
(D) : 1 students
(E) : 3 students

Success level: 54% (including partial credit for multiple-choice)
Discrimination index (Aubrecht & Aubrecht, 1983): 0.86