Worker Productivity Is Assessed Before and After a Program for Flextime

question 15

Multiple Choice

Worker productivity is assessed before and after a program for flextime is instituted. Just after the pretest, workers receive an unexpected bonus check based on unusually high product sales. Productivity is higher on the posttest than on the pretest, but the researcher suspects ______ as a threat to internal validity.

• A)history
• B)regression
• C)instrumentation
• D)selection

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Definitions:

Numerical Labels

Represent identifiers in the form of numbers, used for categorization or sorting purposes.

Isoquants

Curves on a graph that represent combinations of different inputs that produce the same level of output.

Marginal Returns

The additional output resulting from a one-unit increase in the use of a variable input, keeping all other inputs constant.

Technical Efficiency

The ability of an entity to maximize output for a given set of inputs, using the least possible amount of resources.