____ is best explained by the wear-and-tear theory of aging

The relationships that provide a child with security, guidance, and knowledge are an example of which of the following perspectives that shape development in childhood?

a. Social context b. Biological maturation c. Representation of self and social world d. All of the above

Two first-grade teachers were interested in boys' aggressive behavior that seemed to happen during recess

One teacher believed that the aggressive behavior was more likely to happen when the boys and girls got to play together during recess while the other teacher believed that the boys' aggressive behavior was worse when they played among themselves. To settle their debate, for one week they had the boys play alone (without the girls) during recess. The following week they had the boys play with the girls during recess. The teachers monitored boys' aggressive behavior each week. What potential ethical problems do these teachers have? How could this problem be corrected and avoided? What will be an ideal response?