Postdoctoral Fellow Walter Waters Used Nonrandom Sampling in His Study

question 13

Multiple Choice

Postdoctoral fellow Walter Waters used nonrandom sampling in his study of successful scientists.He knew most got excellent grades in high school and university,excelled in mathematics,and had a strong interest in science from a very young age.For his study,he was interested in sampling those who were successful as adult scientists but did poorly in high school,did average or worse in math classes,and showed little interest and aptitude in science until they reached university.What type of sampling was he using?

• A)Snowball
• B)Theoretical
• C)Sequential
• D)Deviant case
• E)Quota

---

Definitions:

Hydrogen Fuel

A clean energy source that, when consumed in a fuel cell, produces only water as a byproduct, offering a potential alternative to fossil fuels.

Net Energy

The difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.

Ozone

A molecule made of three oxygen atoms, significant in the stratosphere where it protects life by absorbing harmful ultraviolet radiation.

Hydrogen Gas

A colorless, odorless, and highly flammable gas, the lightest and most abundant element in the universe, used in various industrial processes.