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Rudolf Rudolf
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7 years ago
According to McBurney and Collings, the average threshold for human vision is a candle flame seen from ________ mile(s) on a dark, clear night.
a. 30
b. 1
c. 15
d. 7
Textbook 
Understanding Psychology

Understanding Psychology


Edition: 11th
Authors:
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QuothQuoth
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7 years ago
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Rudolf Author
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7 years ago
This helped my grade so much Perfect
elizabetheldrid
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Yesterday
Brilliant ツ
Gorgio_De
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2 hours ago
Good timing, thanks!
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