1 In a study of individuals suffering from frequent anxiety attacks, patients were given vitamin B6 (125mg, 3 times daily) and tryptophan (2 grams daily). 2  This regime enabled in 70 percent of patients (9 of 13) to become free of anxiety attacks within three weeks.
The Kappa Page. This is a page all about the Twitch.tv Kappa. The Kappa is a meme among Twitch users (and now it seems other places.) The meme has become a sort of patron saint of light hearted trolling among the gaming community. Users typing Kappa into Twitch chat see a special emoticon featuring a smug looking human face.
The kappa statistic (or kappa coefficient) is the most commonly used. statistic for this purpose. A kappa of 1 indicates perfect agreement, whereas a kappa of 0 indicates agree-. ment equivalent to chance. A limitation of kappa is that it is affected by the prevalence of the finding under. observation.