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Earn +20 ptsQ: Why is it difficult to random sampleand important to random assignment?
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What is the difference between random sampling and random assignment?
Random assignment: assigning participants to experimental and control conditions by chance Vs. Random sample: a sample that fairly represents a population because each member has an equal chance of being included You decide :-D
The absence of random assignment in any study?
Allows for potential confounding
Why are important in random variables?
It might help if you specified why WHAT was important in random variables.
Why is it important to make sure you random sample is random?
It is important to make sure your random sample is random in order to make sure the results are accurate, and to prevent experimenter bias.
In Statistics define the 4 ARMC criteria?
1. variable is an antecedent 2. random assignment 3. values are maniipulated 4. controls
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