Abstract Mkid 143

Confidence intervals within hypnosis would improve research, especially confidence intervals for effect sizes. Moreover, within hypnosis research, confidence intervals are needed for reliability and validity measures. This paper describes definitions and issues related to confidence intervals. Confidence intervals can be used with one sample and two sample cases, and they can facilitate meta-analytic thinking. Finally, this paper provides definitions of confidence intervals that decrease misunderstanding and SPSS computer codes for calculating them.