Which of the Following Is an Example of Proactive Interference

question 149

Multiple Choice

Which of the following is an example of proactive interference?

• A) An experimenter tells you to remember "HIZNF," but then asks you to count backward by threes from 227. Twenty seconds later you cannot remember HIZNF.
• B) You read a story but when you try to tell it you leave out several unimportant details and you distort some others.
• C) You have changed your telephone number three times this year. As a result, you keep forgetting your new number.
• D) You have had a new combination lock each of the last 3 years. As a result, you can no longer remember the combination you had 3 years ago.

---

Definitions:

Trophoblast

The outer layer of cells surrounding a blastocyst in early pregnancy, which develops into the placenta and provides nutrients to the embryo.

Amniotic Sac

A fluid-filled sac that surrounds and protects the embryo and fetus in the uterus during pregnancy.

Zygote

The first cell created through the fusion of an egg cell and a sperm cell, signifying the start of a new organism's growth.

Placenta

An organ that develops in the uterus during pregnancy, providing oxygen and nutrients to the growing fetus while removing waste products through the umbilical cord.