Explanation

• Historical research describes "What was or what happened."
• It focuses on studying past events, actions, and phenomena.

Explanation

• A questionnaire is most useful for a "Survey study."
• It allows researchers to gather information from a large number of respondents efficiently.

Explanation

When the population is divided into homogeneous subgroups and random samples are drawn from each subgroup, this technique is called "Stratified sampling."

Explanation

• The highest, most precise level of measurement is represented by "Ratio scales."
• Ratio scales have all the properties of interval scales, plus a true zero point, which allows for meaningful ratios between values.

Explanation

• A theory is said to be powerful if it "Provides an explanation for a large number of events."
• This means that it can explain a wide range of phenomena or observations within its domain.

Explanation

• The first step in using sampling as a tool of research is to "Define the population."
• This involves clearly identifying the group or population that the researcher wants to study.

Explanation

Experimental Research: This type of research involves manipulating one or more independent variables to observe their effects on a dependent variable in a controlled environment.

Explanation

Applied Research: This type of research involves using theories or principles to solve practical problems or address specific questions, often by testing their applicability in real-world contexts.

Explanation

Aristotle believed that the aim in education is to train people to reason.

Explanation

• The term "Philanthropinum" does not belong to the group.
• The others - Didasealeum, Palaestra, and Ephebos - are all related to aspects of ancient Greek education or training.