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A rational consumer who prefers one apple to two oranges,and two oranges to one orange,
Intelligence
The capacity for learning, understanding, and applying knowledge, as well as the ability to reason, plan, and solve problems.
Validity
refers to the degree to which a tool, test, or research accurately measures what it is intended to measure.
Reliability
The consistency of a measure or test over time, ensuring that repeated experiments or trials yield similar results.
Spuriousness
A relationship between two variables that appears to be causal but is actually due to both variables being influenced by one or more other variables.
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