Which situation is an example of Lev Vygotsky's concept of scaffolding?

A research design in a group of similar participants is followed and studied over a long period of time is called a _____ design.

Dr. Sardonicus is studying the effects of aging on memory. She gives an initial test of memory to a group of 20-year-olds and a group of 40-year-olds. Then she follows both groups of participants for a period of five years, regularly giving them memory tests during that time. Which research design is Dr. Sardonicus using?

When Helle was born, her parents agreed to allow her to participate in a research project that investigates the development of motor skills in children. Every year, Helle's parents complete a survey answering questions about how Helle's motor skills have changed. The researchers are using only one group of parents and children for the study. Helle and her parents are participating in a study that uses a _____ design.

One disadvantage of a longitudinal research design is

In Erik Erikson's psychosocial stages of development, the trust-versus-mistrust developmental crisis occurs among

Early in life, infants will demonstrate their personalities through their

With respect to a babies' needs, caregivers of _____ babies are unresponsive, insensitive, and coldly rejecting.

Lev Vygotsky's _____ refers to the difference between what a child can do alone versus what a child can do with the help of a teacher.