After Defining the Variables Involved in a Study, Scientists Have

question 1

Essay

After defining the variables involved in a study, scientists have to identify individuals to study. The population is the group of individuals to whom we hope our conclusions will apply. Researchers generally hope that their conclusions will apply to a large population, such as all 5-year-olds or all people with schizophrenia. Because it is not practical to examine everyone in the population, researchers study a sample of people and assume that the results for the sample apply to the whole population. Briefly define the following types of samples and give one example for each; convenience sample, representative sample, random sample, and cross cultural sample.

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Definitions:

Hurtful Message

A communication that is intended or perceived to cause emotional pain or distress to the recipient.

Threat

An indication or warning of probable trouble, harm, or danger to someone or something.

Hierarchical Structures

Refers to systems organized in a ranked order, often seen in organizations or biological classifications, where each level is above or below another.

Memories

Memories are the mental storage of past experiences, knowledge, and sensations, which are capable of influencing present behavior and attitudes.