Field experiments, compared to laboratory experiments, generally
A) have equal external and internal validity.
B) have higher external validity and lower internal validity.
C) have lower external validity and lower internal validity.
D) have lower external validity and higher internal validity.
B
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A key provision of Section 504 of the Rehabilitation Act of 1973 is:
a. an individualized education plan b. education comparable to the education of other students without disabilities. c. modifications d. related services e. all of the above.
The environment can impact the deficits that some children are born with, making them
either more or less pronounced. Indicate whether the statement is true or false
Reserves of Social Security are financed by:
A) ?special private insurance policies B) ?a condition of federal and state subsidies C) ?payroll taxes of workers D) ?sales of the blood donated to the Red Cross
Match the concept with the definition.
1. Mean 2. Median 3. Mode 4. Range 5. Standard deviation a. The highest value in a distribution minus the lowest value plus one b. The most frequent value in a distribution c. The point that divides the distribution in half d. The average squared deviation of each case from the mean e. The arithmetic average of the distribution