The Major Contribution of Emil Kraepelin Was ______

question 265

Multiple Choice

The major contribution of Emil Kraepelin was ______.

• A) the development of a classification system in which the current diagnostic systems are rooted
• B) the discovery that early childhood environment plays a crucial role in the development of a healthy personality
• C) the discovery of the bacterium causing syphilis
• D) the development of "moral therapy," in which humane treatment and a relaxed environment were used to help restore mental health

---

Definitions:

Short Run

In economics, a period during which at least one of a firm's inputs is fixed, limiting its capacity to adjust to changes in demand.

Long Run

A period in which all factors of production and costs are variable, allowing for full adjustment to change.

Marginal Revenue

The additional income gained from selling one more unit of a product or service.

Monopolist's Demand Curve

The demand curve faced by a monopolist, which is the same as the market demand curve, indicating that the monopolist can set the price only by choosing the quantity to produce.