The _____ is a measure of variability around the mean of a distribution

Which of these techniques has been shown to be most helpful in the treatment of pain?

a.) self-instruction training b.) insight therapy c.) hypnosis d.) meditation

Which of the following illustrates a significant change in family life in the United States from before the Industrial Revolution to the mid-twentieth century?

a. Growing up, Louis had ten siblings and Lena had eleven, but they decided that their family was big enough after their second child was born. b. Jacob grew up in a large city but moved to a rural area as an adult and began working as a farmer. c. Sarah and Franklin had a total of six children, but only one of those children lived past the age of one year. d. Samuel, born during the Great Depression, was less negatively affected than his siblings who were born when their family and the country as a whole were more affluent.