"effective" - key terms from Wikipedia

annual effective	discount rate
antiterrorism and effective	death penalty
cost effective
effective
effective	address
effective	against
effective	against most
effective	annual
effective	annual rate
effective	apr
effective	average
effective	charge
effective	clock
effective	cost per action
effective	death penalty act
effective	degrees of freedom
effective	dose
effective	duration
effective	exchange rate
effective	exhaust velocity
effective	field theory
effective	focal length
effective	interest rate
effective	internal control
effective	labor
effective	leadership
effective	marginal
effective	mass
effective	method
effective	pc address
effective	range
effective	refractive index
effective	stress
effective	tariff
effective	tariff rate
effective	tax rate
effective	temperature
effective	than
habits of highly effective	people
less effective
maximum effective	range
mean effective	pressure
mhz effective
more effective
more effective	than
per unit of effective	labor
safe and effective
seven habits of highly effective
times more effective
very effective