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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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Soren Soren
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9 years ago
When participants in her longitudinal study on the effects of child care moved away or dropped out, Dr. Swan was probably concerned about
A)   biased sampling.
B)   selective attrition.
C)   practice effects.
D)   cohort effects.
Textbook 
Child Development

Child Development


Edition: 9th
Author:
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SuperionSuperion
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8 years ago
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Soren Author
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#2
8 years ago
I doubted myself! Thanks for confirming. Giving your response the best answer Slight Smile
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#3
8 years ago
Mark as solved, don't forget Slight Smile
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#4
8 years ago
What was the answer
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#5
3 years ago
thank you
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#6
3 years ago
thanks
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