Power Curves
Statistical power refers to the probability to correctly reject a false null prediction or the probability to accurately accept the true alternative prediction. The concept of power emerged as a countermeasure to misuse of statistics in null hypothesis significance testing. The demonstration of the impact of increasing sample and the change in size of the effect can be represented using a set of curves that provide the ability to make more accurate estimations of the power of a given statistic.
In most social-scientific investigation, the exact treatment effect remains difficult to quantify. A researcher may be able to deduce a prediction from theory that, for example, threat messages are more prone to incur persuasive boomerang (creating ...
Looks like you do not have access to this content.
Reader's Guide
- All
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
Research Methods
