Random assignment will be useful in he research by Professor Menendez to ensure that each participant has equal chance.
<h3>What is a random assignment?</h3>
A random assignment simply means the use of chance procedure to ensure that everyone has an equal chance of being selected.
Placebo condition is any treatment which has no active properties. It's when people experience a benefit after the administration of an inactive treatment.
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Yes that's true but everything should be in a balanced diet because even in a vegetarian diet there are products made of milk such as butter,ghee,cheese and many more so if we consume these types of foods also it is very harmful for our health whereas in a non-vegetarian diet fish is very good for health and consuming little red meat is also good so in both there are good&bad effects.
HOPE YOU UNDERSTAND.