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Why is participant variables an issue in independent groups (between groups design)? Watch

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    The independent groups design uses random allocation of different participants in each condition. So in effect, isn't this reducing P.Vs and individual differences as they all have an equal chance of being assigned to a group, which ensures that on average, the groups are more similar?

    If so, why would P.Vs be a limitation for this design?
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    No because different people are used. They have different personalities and that'll effect the results regardless if they were intentionally or randomly placed in the group
 
 
 
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