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Yummi Yummi
wrote...
Posts: 2642
8 years ago
Dr. Salahma conducts a study on teenagers and product preference.  In his study, he begins with a diverse sample of 13-19 year olds. However, after the first few trials of the experiment many of the 15 year old males in the experiment stop responding to the questions and choose not to participate in a follow up session. Dr. Salahma needs to be concerned about
a.   random assignment.   c.   cohort effects.
b.   selective attention.   d.   selective dropout.
Textbook 
Child Development

Child Development


Edition: 7th
Author:
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LeeWilliamsLeeWilliams
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Posts: 5587
8 years ago
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Yummi Author
wrote...
8 years ago
Perfect timing, my exams in a few days. Thanks for the response.
wrote...
8 years ago
Happy to please Smiling Face with Open Mouth
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