Phonics program helps childrens reading comprehension

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Dr.Kenji wants to determine whether his new phonics program helps children’s reading comprehension. He gives a fifth grade class the program and also studies a second group class that does not go through the program. He finds that the fifth graders read with better comprehension. Identify the cofounding variable in this research design:

A) the grade the students are in

B) the phonics program

C) reading comprehension scores

D) not giving one group the program

Reference no: EM13342288

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