According to the variance sum law, the variance of the difference of two independent variables is equal to the difference of their variances

Overall maltreatment rates are highest for which age groups?

A) teens B) 5- to 10-year-olds C) infants under 1 D) children 1 to 4 years

When studying, one of the most powerful ways to produce lasting long-term memories is:

a. capitalizing on the serial-position effect b. testing oneself c. utilizing visuospatial processing d. studying right before going to sleep