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Home Q & A Board Other Fields Homework Help Education Studies
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veraday veraday
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Posts: 842
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7 years ago
An experimental researcher selects students to participate in a study examining the influence of a new math curriculum in an elementary school grade. The researcher randomly assigns the students to the new curriculum or a control group. However, some other events focusing on math may occur outside the classroom. What potential threat to validity exists in this experiment?
A) History
B) Selection
C) Regression
D) Ability scores
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ribsterribster
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#1
Posts: 257
Rep: 18 0
7 years ago
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veraday Author
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7 years ago
Just got PERFECT on my quiz
big_larry_samp
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Yesterday
Thank you, thank you, thank you!
nsak
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2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
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