Examlex
Consider the following simple regression model: y = 0 +
1x1 + u. In order to obtain consistent estimators of
0 and
1, when x and u are correlated, a new variable z is introduced into the model which satisfies the following two conditions: Cov(z,x)
0 and Cov (z,u) = 0. The variable z is called a(n) _____ variable.
Personal Fable
A belief held by adolescents that they are unique, invulnerable, and can not be understood by others.
Sensorimotor Stage
The first stage in Piaget's theory of cognitive development, where infants learn through interacting with the environment using their senses and motor actions.
Piaget
Refers to Swiss psychologist Jean Piaget, known for his pioneering work in the study of cognitive development in children.
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