Why Is It Important to Make Sure That Different Participant

question 179

Multiple Choice

Why is it important to make sure that different participant groups are roughly equivalent in terms of personal characteristics (e.g., age, gender) before any independent variable is introduced?

• A) Because it is important to treat all research participants equally so that they feel that they are not being manipulated.
• B) Because research ethics forbid any experiment to take place when the participant groups are fundamentally different from each other.
• C) So that no major differences between the groups unduly bias the results of the experiment.
• D) Because this is generally what happens when participants are allowed to choose their own groups.

Define key terms such as gene pool, genetic variation, and genotype.

Understand the impact of non-random mating on genetic variability.

Comprehend the effects of environmental changes on natural selection and allele frequencies.

Identify the processes that contribute to population genetics, including mutation, migration, and natural selection.

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Definitions:

Y-Intercept

The point where a line crosses the Y-axis of a graph, representing the value of y when x is zero.

Regression Line

A straight line that best fits the data points on a scatter plot, showing the relationship between the independent and dependent variables.

Annual Rainfall

The total amount of precipitation, measured in units of length, that falls in a specific area over the course of one year.

Shoreline Erosion

The process by which coastal land is worn away by natural forces such as wave action, currents, or tidal movements.