In a Survey,psychologists Select a Random Sample of Research Participants

question 107

Multiple Choice

In a survey,psychologists select a random sample of research participants in order to ensure that

• A) the participants are representative of the population they are interested in studying.
• B) there will be a large number of participants in the research study.
• C) the study will not be influenced by the researcher's personal values.
• D) the same number of participants will be assigned to each of the experimental conditions.

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Definitions:

Power Consumption

The amount of energy used by devices or systems over a certain period, often measured in watts or kilowatts.

P-value

The probability of obtaining test results at least as extreme as the observed results, assuming the null hypothesis is correct.

Sample Size

The number of units or observations collected from a population for the purpose of a statistical analysis.

Significance Level

Significance level is a threshold in hypothesis testing, denoting the probability of rejecting the null hypothesis when it is actually true, often set at 0.05 or 5%.