With Respect to Data Collection,what Is True

question 29

Multiple Choice

With respect to data collection,what is true?

• A) Open-ended questions generally take more time to develop than closed-ended questions.
• B) One form of observational data collection procedure is the use of a polygraph in the analysis of a respondent's answers during an interview.
• C) A psychologist who plays in a sandbox with a group of preschoolers in order to gather data is engaged in in-group observations.
• D) Data collection methods may divided into three basic and broad categories: surveys, interviews, and observations.

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Definitions:

Method of Elimination

A technique for solving systems of linear equations by adding or subtracting equations in order to eliminate one of the variables.

System of Equations

A set of equations with the same variables, where the solution must satisfy all the equations in the system simultaneously.

Method of Substitution

A technique used to solve systems of equations by solving one equation for one variable and substituting that expression into the other equation.

System of Equations

A set of equations with the same variables, which are solved together to find a common solution for those variables.