This calculator uses a number of different equations to determine the minimum number of subjects that need to be enrolled in a study in order to have sufficient statistical power to detect a treatment effect. 1. Before a study is conducted, investigators need to determine how many subjects should be included. By enrolling too few subjects, a study may not have enough statistical power to detect a difference (type II error). Enrolling too many patients can be unnecessarily costly or time-consuming.
âBarbara Gordon. Barbara Babs Gordon AKA Batgirl is the daughter of Gotham City's Police Commissioner James Gordon. She later took on the mantle of Batgirl, and became Batman's partner and protegÃ© for many years. Barbara was first seen when her father was shot by Jazzman on the anniversary of the death of Bruce Wayne's parents. A sorrowful Batman visits Gordon in Gotham City Hospital, where Barbara tells him not to blame himself.
We've been thinking that Barbara Kean on Gotham was just Jim Gordon's wife from the Batman comics and a civilian. However, what if she's more than that? What if she's becoming another DC Barbara, also known as Batgirl? When Gordon found her in Jason The Ogre Lennon's clutches, she seemed changed. Is Barbara Kean becoming a hero or villain from DC Comics? She was involved with the Ogre and is seems like Barbara may have killed her own parents on the show.