Oxytocin appears to be involved in mother-infant bonding but not social bonding more generally

Lana is a working mother who worries about the effects of her employment on her children. What does research indicate on this topic?

A. Children in child care are likely to suffer from attachment difficulties and cognitive delays. B. Maternal employment may actually have a positive effect on her children if it results in personal satisfaction for the mother C. Mothers can compensate for time away from home by purchasing educational toys and computer programs D. Across studied variables, no difference has been shown between children of working and stay- at-home mothers

A statistically significant difference with the z test means that _____

a. the population mean is larger than the hypothesized sample value b. the alpha level was higher than expected by chance alone c. the sample mean comes from a population with a mean different from the hypothesized population value d. the alpha level was lower than expected by chance alone Information; p 167, E, 2