Examlex
What is the principle on which frequency control operates?
Difference-In-Difference
A statistical technique used to measure the effect of a treatment or intervention by comparing the changes in outcomes over time between a treatment group and a control group.
Free Warranty
A promise or guarantee provided at no extra charge that covers repair or replacement of a product within a specified period.
Type I Errors
The incorrect rejection of a true null hypothesis, also known as a "false positive."
Difference-In-Difference
Difference-in-difference is a statistical technique used in econometrics and quantitative research to measure the effect of a treatment or intervention by comparing the changes in outcomes over time between a group that's exposed to the treatment and a group that's not.
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