The Binomial Effect Size Display (BESD) is a method for demonstrating the real-world effect size of a correlation. Based on the BESD, if there is a correlation of .30 between drinking alcohol and the likelihood of having a car accident, then out of 100 people who have been drinking, how many people would you expect to have an accident?

65 people

Explanation:

The ability of researchers to communicate statistical findings in clear and lucid format and also the ease at which readers are able to understand and interprete the communicated statistical result and information is of great and major importance in statistical data analysis. The binomial effect size display helps convey the statistical results in lucid and intuitive manner as data communication and interpretation remains a core part of the data ecosystem as it pivotal to data interpretation and evaluation.

Given a correlation Coefficient, r, value of 0.3

The expected number of people to have accident about of 100 who have been drinking will be ;

Using the relation :

Sample size * (0.5 + r / 2)

100 * (0.5 + 0.3/2)

100 * (0.5 + 0.15)

100 * (0.65)

= 65 people

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.