When a Researcher Engages in Quantitative Analysis Using Inferential Statistics

question 26

Multiple Choice

When a researcher engages in quantitative analysis using inferential statistics, the sampling method used in selecting participants for the research project becomes critical. :

• A)Probability sampling methods must be used
• B)Non probability sampling methods must be used.
• C)Purposive sampling methods must be used.
• D)Judgemental sampling methods must be used.

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Definitions:

Classical Psychophysical

Relates to the traditional study of the relationships between physical stimuli and the sensations and perceptions they produce.

Sensitivity

The capacity to perceive, feel, or be aware of stimuli or changes in the environment; can also refer to the degree of responsiveness to social or emotional matters.

Weber Fraction

A principle that quantifies the perception of change in a given stimulus, stating that the just noticeable difference is a constant proportion of the original stimulus’s intensity.

Difference Threshold

The smallest amount that a given stimulus must be increased or decreased so that an individual can detect the difference.