When a Researcher Has Made the Decision to Conduct a Survey

question 46

Multiple Choice

When a researcher has made the decision to conduct a survey using a sample of the population,the FIRST step in the selection of the sample is to:

• A)define the target population
• B)determine the sample size
• C)select the actual sampling units
• D)select a sampling frame

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Definitions:

Selection

The process by which certain traits become more prevalent in a population because they confer a survival or reproductive advantage.

QTL Association Studies

Quantitative Trait Loci (QTL) association studies are research methods used to identify the genetic locations associated with specific quantitative traits in organisms, such as height, weight, or disease susceptibility.

Phenotypic Variation

The observable differences in appearance and behavior among individuals of the same species due to genetic and environmental influences.

Heritability

A measure of how much of the variation in a trait within a population can be attributed to genetic differences among individuals.