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Help please 20 points

1 .what was brat hypothesis ?
2 .identify the control group?
3 .Identify the independent and the dependent variables
4 .what might be some of the possible constants ?
5 .what should brat conclusion be ?

Help please 20 points 1 what was brat hypothesis 2 identify the control group 3 Identify the independent and the dependent variables 4 what might be some of the class=