Chapter 23, Problem 13MC

A control group is __________. a. a set of individuals that have a certain characteristics or receive a certain treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive results

Which of the following represents the application of the scientific method? a. comparing one experimental subject to one control subject b. believing an explanation that is too complex to be tested c. using controlled experiments to test falsifiable hypotheses d. developing one testable hypothesis to explain a natural phenomenon e. observing a once-in-a-lifetime event under natural conditions

A suggested and testable explanation for an event is called a ________. hypothesis variable theory control

suggested and testable explanation for an event is called a _______. a. hypothesis b. variable c. theory d. control

Do you think the way this issue was handled should be a model for future situations involving potential dangers that might arise from research methods or results?

A control group is ______. a. a set of individuals that have a characteristic under study or receive an experimental treatment b. the standard against which an experimental group is compared c. the experiment that gives conclusive results

Which of the following questions best exemplifies basic research? a. How did life begin? b. How does alcohol intake affect aging? c. How fast does H1N1 flu spread among humans? d. How can we reduce hereditary problems in purebred dogs? e. How does the consumption of soft drinks promote obesity?

When researchers say that a scientific hypothesis must be falsifiable, they mean that: a. the hypothesis must be proved correct before it is accepted astruth. b. the hypothesis has already withstood many experimentaltests. c. they have an idea about what will happen to one variable ifanother variable changes. d. appropriate data can prove without question that thehypothesis is correct. e. if the hypothesis is wrong, scientists must be able todemonstrate that it is wrong.

In one survey, fifteen randomly selected students were found to be taller than 6 feet. This data led to the conclusion that the average height of a student is greater than 6 feet. This is an example of __________. a. experimental error b. sampling error c. a subjective opinion d. experimental bias