Many women experience clots occasionally during their periods, usually during the heaviest flow days. Your body releases anticoagulants to prevent clots but sometimes if your period is heavy the anticoagulants don't have time to work and clots are able to form.
Report Abuse. children are excellent examples of observational learning. They watch their parents, family, friends, teachers, etc. and they copy it. If it works for them they continue doing it, if it doesn't work they stop. 1.
Answer Wiki. There are no independent variables in observational studies. In an observational study, the researcher compares subjects against a control group and comes to a conclusion. Hypothetical example: if we have a research study comparing the risk of developing liver cancer between (1) people who drink some alcohol daily, and (2) teetotalers.