If There Is in Fact a Small, but Real, Difference

question 46

Multiple Choice

If there is in fact a small, but real, difference between treatment conditions, which design is the most likely to detect that difference?

• A) within-subjects design
• B) random-groups design
• C) between-groups design
• D) split-litter design

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Definitions:

Desert Varnish

A thin, dark film or coating of iron and manganese oxides, silica, and other materials; formed by prolonged exposure at the surface; synonym rock varnish.

Desert Pavement

A natural concentration of pebbles and other rock fragments that mantle a desert surface of low relief.

Cross-Cutting Relations

A geological principle stating that any geologic feature that cuts across another feature must be younger than the feature it cuts.

Inclusions

Pieces of one rock unit that are enclosed within another rock unit, often used in geology to determine the relative age of rock layers.