despite the care taken to ensure the quality of date collected by enumeration and sampling, the final tabulation will sometimes give obvious indication of errors in basic information. evaluation of these errors furnishes those who use such a study and sampling. more general, the finding in these studies should be helpful to others that conduct surveys. in order to compare the age composition of...

the prevalence of child abuse in the world is 47 per 1000. according to the child protective service agency (cps) more than 3 million children were abused in the usa in 1998. there was 1.7% increase in comparison with 1996. the prevalence of child abuse in the usa is 15 per 1000. a crosssectional study was conducted in order to determine the frequency, and influential factors on child abuse amo...