Random assignment ensures:
a. correlations are accurate
b. each participant in an experiment has an equal chance of being assigned to a any condition
c. research participants do not know one another
d. each member of a population has an equal chance of being selected for a research study
B
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Concepts defined by specific rules are called
a. natural concepts. b. intuitive concepts. c. heuristics. d. logical concepts. e. algorithms.
Two-year-old Tiki has acquired the ability to spin one arm in a large circle while holding the other arm perfectly still. This exemplifies the orthogenetic principle element of
a. a differentiated response. b. global responding. c. integration. d. reserve capacity.
In 1977, the Apple II came with 16 K of RAM. In 2004, the iBook G4 came with 256 MB of RAM. That's a huge increase in memory capacity! This example demonstrates the evolutionary process called the ___
a. ratchet effect b. zone of proximal development c. scaffolding phenomenon d. tool mediating system
Children learn to follow instructions because:
A) ?parents praise them when they do so. B) ?doing so enables them to better accomplish certain tasks. C) ?Both a and b are correct. D) ?None of these are correct.