Dr. Lin studies sleep and sleep disorders. She is curious as to whether technology exposure before bedtime causes people to fall asleep more slowly. She recruited a sample of people who reported no history of sleep problems. She created three conditions. All participants come to the lab for three nights in a row and experience all three conditions. In the first condition (A), participants were asked to play an online game on their phone 10 minutes before going to bed. In the second condition (B), participants were asked to read an article on their phone that discusses strategies to score higher on the online game. In the third condition (C), participants were asked to read a newspaper article about the online game's inventor. At the end of the manipulation each night, Dr. Lin measured how long it takes the participants to fall asleep. What type of design is Dr. Lin using? Within-subject design Between subject design One group pre/post design Complex design
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Dr. Lin studies sleep and sleep disorders. She is curious as to whether technology exposure before bedtime causes people to fall asleep more slowly. She recruited a sample of people who reported no history of sleep problems. She created three conditions. All participants come to the lab for three nights in a row and experience all three conditions. In the first condition (A), participants were asked to play an online game on their phone 10 minutes before going to bed. In the second condition (B), participants were asked to read an article on their phone that discusses strategies to score higher on the online game. In the third condition (C), participants were asked to read a newspaper article about the online game's inventor. At the end of the manipulation each night, Dr. Lin measured how long it takes the participants to fall asleep. What type of design is Dr. Lin using?
Within-subject design
Between subject design
One group pre/post design
Complex design
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