What Method Is Used to Read a Bar Code

question 124

Multiple Choice

What method is used to read a bar code?

• A)The magnetic bar codes are converted by a bar code reader into a form that a computer can process.
• B)A laser translates the bars on the bar code into digital signals that are stored in RAM.
• C)A laser scanner produces light beams that pass through a scanner filter which then translates the light patterns into digital patterns that can be interpreted by the CPU.
• D)A bar code reader uses laser beams to read bar codes.

Describe the concept of population in sociological research and identify the appropriate population for a study.

Understand the concept of generalizability in research and the factors that may limit it.

Recognize the ethical considerations and requirements in conducting sociological research.

Identify the benefits and limitations of different data collection methods, such as participant observation and experiments.

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Definitions:

Nurture

The influence of external factors like education and the environment on an individual's behavior and development.

Correlation Coefficient

A statistical measure that indicates the extent to which two or more variables fluctuate together, showcasing the strength and direction of their relationship.

Test-retest Reliability

The consistency of a psychological test or assessment measured over time, indicating how reliable the test results are with repeated application.

Test

An examination or evaluation conducted to assess a person's knowledge, skills, abilities, or characteristics.