The estuary formed by the entrance of the Guadalupe River into San Antonio Bay near Aransas Pass is the home of
a. feral pigs.
b. whooping cranes.
c. bluegill fish.
d. delicate orchids.
e. Texas bluebonnets.
B
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Which confounding variables cannot be completely controlled because of ethical constraints on the research?
A) maturation and history B) maturation, selection, and regression to the mean C) attrition and selection D) regression to the mean and instrumentation
The only Texas governor to be impeached by the Texas House and convicted by the Texas Senate was
A) E.J. Davis. B) James Ferguson. C) Miriam Ferguson. D) William Clements. E) Andrew Johnson.
The Federal Trade Commission and the Internal Revenue Service are examples of
a. bureaucratic rulemaking. b. legislative commissions. c. lobbying. d. judicial action by the bureaucracies.
In order to combat any threats to internal validity during sampling procedures, researchers should use
a. external validity. b. systematic sampling. c. random sampling. d. random assignment.