andreasolis6813 andreasolis6813
  • 12-01-2024
  • Social Studies
contestada

The presence of others ________ a person's performance on well learned tasks and ________ a person's performance on unmastered tasks.
a. improves; has no effect on
b. hinders; improves
c. has no effect on; hinders
d. improves; hinders
e. improves; improves

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