A Researcher Is Interested in Determining Whether Test Performance of Students

question 90

Multiple Choice

A researcher is interested in determining whether test performance of students can be improved by providing them with individual tutoring.The researcher randomly divides fifty first-year college students into two groups.In Group A,the instructor lectures to them for three hours per week.Group B receives an equal amount of lecturing,but their instructor also meets with each student for thirty minutes every week.Each group takes the same final exam.The test performance of students in Group B is about the same as that of students in Group A.This study is an example of a(n) ____.

• A) correlational study
• B) case study
• C) experiment
• D) survey

---

Definitions:

Electron Configuration

The placement of electrons across the atomic or molecular orbitals in atoms or molecules.

Helium

A light, non-reactive gas used in balloons, as a cooling agent for nuclear reactors, and in inhaling mixtures to correct voice pitch.

Carbon Dioxide

An odorless, colorless gas that comes from the combustion of carbon and organics, plus through respiration, and is captured by plants in their photosynthesis process.

Ice Cores

Cylindrical samples taken from ice sheets or glaciers, used in climate research to analyze past atmospheric and environmental conditions.