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Item MO031002: A student could use a diagram to help himself figure out the way light travels or to show someone else the way light travels.

What reason might a student have for drawing a diagram about the way light travels?

  1. To help himself figure out the way light travels,
    or to show someone else the way it travels
  2. To help himself figure out the way light travels,
    but not to show someone else the way it travels
  3. To show someone else the way light travels,
    but not to help himself figure out the way it travels
  4. Neither to help himself figure out the way light travels
    nor to show someone else the way it travels
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 1578
6–8
n = 992
9–12
n = 579
Male
n = 755
Female
n = 789
English
n = 1439
Other
n = 96
A. 71% 68% 76% 66% 76% 72% 59%
B. 11% 12% 8% 11% 10% 10% 19%
C. 14% 15% 12% 17% 11% 13% 17%
D. 5% 5% 4% 6% 4% 5% 5%