Research on Statistical Power in Existing Research Studies Has Demonstrated

Multiple Choice

Research on statistical power in existing research studies has demonstrated that…

A) power should not be a concern since most studies have sufficient power.
B) although earlier studies have suggested studies were low in power, it is no longer an issue as researchers have become more aware of its necessity and conduct power analyses regularly.
C) power continues to be an area of concern as many as half of studies in prominent journals are underpowered.
D) it is extremely confusing why researchers do not care about power because it is very easily achievable.