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EURGENT PLEASE HELP!!! Select which of the following are outside influences that can affect a researcher’s ability to control an experiment. attrition statistical models selection bias Hawthorne effect
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EURGENT PLEASE HELP!!!

Select which of the following are outside influences that can affect a researcher’s ability to control an experiment. attrition statistical models selection bias Hawthorne effect history sample population maturation

User Justin Young
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6 votes

selection bias is one of them, i can't tell which words in the options go together though

User Wnafee
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4 votes
well is there a picture to go with this?
User Sush
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