Quasi-experimental designs attempt to answer
A) questions of causality.
B) low-constraint questions.
C) manipulated events questions.
D) laboratory manipulation questions.
Question 2
Quasi-experiments are unlike experiments in that
A) they do not always include a comparison of at least two levels of an independent variable.
B) actual manipulation of the independent variable is not always clearly defined or under the experimenter's control.
C) often the experimenter cannot assign participants to groups in an unbiased manner.
D) Both B and C
Connell's experimental manipulation of species indicated the presence of competition.
Lake 226 at the Experimental Lakes Area divided in half.
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