How does concrete operational thinking differ from preoperational thinking?
What will be an ideal response?
Concrete operational thinking is based on systematic, logical thought processes. Children in the concrete operational period are able to use reversible and flexible processes. They understand that an object that changes in one dimension will compensate in another dimension. They are also able to think about more than one dimension of a problem at a time. They can understand class inclusion problems because of this, with an object being able to belong to more than one class at a time. They are less egocentric in their thinking as well.
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In the preceding example, if only Group A and Group D were included as conditions
a. the effects of both alcohol and number of drinks could be assessed. b. the effect of alcohol only could be assessed. c. the effect of number of drinks only could be assessed. d. alcohol content and number of drinks would be confounded.
Competency to execute a will
A. requires a lesser threshold than other competencies. B. refers to an individual's functional abilities at the time the will was drafted. C. requires a testator to know the nature and extent of their property D. all of the above
With alpha and the effect of the independent variable held constant, as N increases _________
a. power increases b. the probability of a Type I error increases c. the probability of a Type II error increases d. power decreases
Selye, who was an early investigator of the arousal response, concluded that which
of the following might produce enlarged adrenal glands and ulcers? (a) certain extracts injected into rats (b) surgery (c) extreme heat (d) immobilizing the rats for extended durations (e) all of the above