You are a developmental psychologist studying the trajectory of temperament across infancy and childhood. Four years ago, you assessed the temperaments of two unrelated 1-year-old boys named Ernie and Bert, sorting them into Thomas and Chess' temperamental categories . Ernie and classified as an "Easy Baby" while Bert was classified as a "Difficult Baby"

a. Based on the categorical judgements briefly describe what each of the boys may have been like in terms of his a. His response to novelty, b)the regularity of his daily routines and c) his general mood

Ernie (easy) :

Bert (Difficult):

Upon learning about your study, your cantankerous colleague Dr. Oscar T.Grouch offered you some constructive criticism about your decision to use a between-subjects approach to study temperament rather than a within-subjects approach (ex.Mary Rothbart's dimension)

b. Briefly describe the difference between between-subjects and within - subjects approach to studying temperament. What is a criticism Dr. Grouch might have raised about between-subject approaches to the study of temperament

Fast-forward 4 years to the present. You-ve taken Dr. Grouch's advice to heart, and are not assessing temperament using Mary Rothbarts within-subject framework

c. Name and briefly define the three broad factors used in Rothbarts framework to describe temperament in childhood

Ernie, now 5 years old, is visiting the lana again. Below is a description of Ernies behavior:

"Ernie is an upbeat and energetic child . He is quite darling, and loves making new friends. However, when he experiences even mild distress, Ernie tends to throw prolonged tantrums or erupt into tears , and he is very difficult to soothe. Ernie also struggles to remain attentive in quiet or calm situations. He is quick to indulge even his most fleeting desires, and when playing new games or doing his however, he tends to give up the moment he encounters something difficult

d. Label each of the three scales below with the factors you identified in part c). Based on this description, make a mark on each scale indicating where you believe Ernie falls on each dimension(you do not need to exact, just in the right ballpark)

Factor: ___________________

Low ............................................................................................... High

Factor: ___________________

Low ............................................................................................... High

Factor: ___________________

Low ............................................................................................... High