List the steps of the scientific method and provide and example of each.
What will be an ideal response?
varies
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A bathroom scale cannot detect the difference in weights between Jorge and Carlos, because the two men only differ by 1 kilogram. As a measure of weight, the scale is limited in terms of its:
A) reliability. B) validity. C) consistency. D) power.
Present three techniques used by medical personnel to assess fetal development. How is each
technique performed? Describe when in prenatal development each test is employed and what information it can produce. What risk does each one present to the developing fetus? What will be an ideal response?
Relative to experiments, correlational studies
a. do not yield as much information about cause-effect relationships. b. are often distorted by the Hawthorne effect. c. require excessive manipulation of the group situation. d. do not provide an index of the magnitude of the relationship between variables.
Researchers have found that some children had higher verbal skills and stronger performance on measures of memory and listening comprehension. These were children who __________.
A. attended preschool B. were born to very intelligent parents C. started school later than other children D. ate a diet that consisted of at least 40% protein