Wagner Et Al

question 22

Multiple Choice

Wagner et al. (1988) used an interrupted times series design to examine changes in worker productivity after the institution of a worker incentive plan. In addition to measuring productivity, they also examined other information in order to rule out alternative explanations of their results. They were able to rule out _______ because _______.

• A)history; no significant event occurred around the time of the program's start
• B)instrumentation; the manner of measuring productivity didn't change
• C)selection; of an absence of significant worker turnover
• D)all of the above

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Definitions:

Collared Flagellates

Single-celled organisms with a distinctive collar around their flagellum, often considered an ancestral form to sponges.

Diverse Morphology

Refers to the variation in form and structure among organisms or parts of organisms within a population, species, or group.

Filaments

Long, thin structures found in many organisms, such as the stamen of flowers or muscle fibers, and are often involved in structural or motility functions.

Sheets

Thin, broad pieces of material, such as metal, paper, or fabric, used for various purposes.