Examlex
Internal validity, carried out through field experiments, measures the extent to which the relationship between independent, dependent, and extraneous variables holds up in the real world.
Crude Oil
A naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials that can be refined to produce usable products such as gasoline.
Real Terms
Describes values adjusted for inflation, allowing for the comparison of quantities as if prices had not changed over time.
Downward Trend
A situation in which market prices, economic indicators, or other measured data show a consistent decline over time.
Fracking
Fracking, short for hydraulic fracturing, is a technique used to extract oil and natural gas from the earth by injecting high-pressure fluid into underground rocks.
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