The Two Conditions for a Valid Instrument Are

question 14

Multiple Choice

The two conditions for a valid instrument are

• A)corr(Z_i, X_i)= 0 and corr(Z_i, u_i)≠ 0.
• B)corr(Z_i, X_i)= 0 and corr(Z_i, u_i)= 0.
• C)corr(Z_i, X_i)≠ 0 and corr(Z_i, u_i)= 0.
• D)corr(Z_i, X_i)≠ 0 and corr(Z_i, u_i)≠ 0.

---

Definitions:

Genetic Engineering

The direct manipulation of an organism's genes using biotechnology to alter its characteristics in a specific way.

Prenatal Abnormalities

Any deviations from normal development in an embryo or fetus before birth.

Chemotherapy

A type of cancer treatment that uses one or more anti-cancer drugs as part of a standardized chemotherapy regimen.

Unintended Pregnancies

refer to pregnancies that are either mistimed, such as those occurring sooner than desired, or completely unwanted at the time of conception.