DEFINITION of 'Analysis Of Variance-ANOVA'. A statistical analysis tool that separates the total variability found within a data set into two components: random and systematic factors. The random factors do not have any statistical influence on the given data set, while the systematic factors do.
A negative result from a home pregnancy test means you're unlikely to be pregnant. But sometimes it means you've taken the pregnancy test too early to know for sure. Wait until a day or two after your missed period and take another test to be sure. Women sometimes find the results of pregnancy tests hard to read.
How Soon Can You Get Pregnant After Giving Birth? Don't show up to your 6-week postpartum checkup pregnant By Robin Elise Weiss, PhD | Reviewed by Anita Sadaty, MD