The relative performance on IQ tests is very unstable; therefore, people's scores vary depending on when they are tested

Vygotsky believed that parents and tutors mentor children in various skills by using ______, in which the mentor and child engage in joint activities

Fill in the blank with correct word

Memory researchers like Herman Ebbinghaus contributed to the beginning of the ____________ perspective

A) humanistic B) psychoanalytic C) cognitive D) behaviorist