Fatima wants to study how ice cream consumption in a school cafeteria is related to aggressive playground behaviour during recess. She realizes that lack of teacher supervision is a possible third variable that could cause both overconsumption and aggressiveness. She studies only children who have received identical amounts of supervision during the day. What technique is Fatima using to attempt
to control for this third variable?
A) matched samples
B) matched pairs
C) matched supervisors
D) double-blind observation
A) matched samples
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Which parts of the brain deteriorate most strongly in Huntington's disease?
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In retrograde amnesia, there are memory lapses for the period following a trauma such as a blow to the head, an electric shock, or an operation
Indicate whether the statement is true or false
A(n) ______ sampling is an example of a convenience sampling.
A. stratified random B. cluster C. volunteer D. random
Melatonin facilitates the ejection of milk during nursing
Indicate whether this statement is true or false.