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A psychologist wishes to determine whether short-term memory scores are affected by the type of medication in hyperactive children. Sixty hyperactive children (30 boys and 30 girls) were randomly assigned to receive either Cylert or Ritalin (two kinds of amphetamines that are central nervous system stimulants) . Their short-term memory was tested on a 20-point scale (where 0 = no memory and 20 = perfect memory) .
-Tukey's HSD value for the interaction between gender and drug levels (at p = .05) is
Price
The amount of money required to purchase a good or service, determined by factors such as demand, supply, and production cost.
Law Of Demand
The claim that, other things being equal, the quantity demanded of a good falls when the price of the good rises
Price
The monetary value assigned to a product or service, determined by various factors including supply and demand, production cost, and market competition.
Quantity
The amount or number of a material or immaterial good that can be measured or counted.
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