The Conditions for a Valid Instruments Do Not Include the Following

question 22

Short Answer

The conditions for a valid instruments do not include the following: a. each instrument must be uncorrelated with the error term.
b. each one of the instrumental variables must be normally distributed.
c. at least one of the instruments must enter the population regression of $X$ on the $Z$ 's and the $W$ 's.
d. perfect multicollinearity between the predicted endogenous variables and the exogenous variables must be ruled out.

---

Definitions:

Theory of Planned Behavior

A psychological theory that predicts an individual's intention to engage in a behavior at a specific time and place, considering attitudes, subjective norms, and perceived behavioral control.

Cognitive Dissonance

The psychological discomfort experienced when holding two or more conflicting beliefs, values, or attitudes.

Scientific Process

A methodical approach to inquiry that involves the systematic observation, measurement, experimentation, formulation, testing, and modification of hypotheses.

Deduction

A logical process where a conclusion follows necessarily from the given premises; moving from general principles to specific instances.