Students in Two of Mr

question 18

Multiple Choice

Students in two of Mr.Lewis's classes are given a test to assess their knowledge of world geography.Then,students in one of the classes participate in Mr.Lewis's new interactive geography learning modules.Students in the other class learn geography using the traditional lecture method.After three months,all students once again take a test to assess their knowledge of world geography.What kind of design did Mr.Lewis use?

• A)single-group pretest-posttest
• B)non-equivalent control group pretest-posttest
• C)multiple-group time-series design
• D)single-group time-series design

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Definitions:

Genetic Drift

Genetic drift is a mechanism of evolution that leads to random changes in the gene pool of a population, often having significant effects in small populations.

New Colony

A newly established population or community, often referring to organisms in a new habitat or to humans in a new settlement.

Genotype Frequency

The proportion of various genetic constitutions within a population, important in the study of population genetics.

Phenotype Frequency

The ratio of individuals possessing a particular phenotype to the total population size, often used in genetic and population studies.