A Researcher Defined a Population and Drew Three Samples from This

question 3

Multiple Choice

A researcher defined a population and drew three samples from this population. Samples were taught by different methods for 12 weeks. Participants were then tested, and it was found that the three samples were not equal in ability. What could have caused this inequality?

• A) The samples started out unequal in ability.
• B) The methods were not equally effective.
• C) All external variables were not controlled.
• D) All of these are correct.

---

Definitions:

Objective Setting

The process of establishing specific, measurable, attainable, relevant, and time-bound (SMART) goals for an organization or individual.

Planning

The process of outlining organizational goals, strategies, and actions necessary to achieve those goals.

Semi-Fixed Marketing Cost

Costs associated with marketing that have both fixed and variable elements, changing with the level of output or sales to some degree, but not proportionately.

Marketing Research

The process of gathering, analyzing, and interpreting information about a market, product, or service.