One of the major differences between experimental research and research from other levels of constraint is
A) that causality is not possible to establish through experimentation.
B) that establishing causality is the major goal in experimentation.
C) that experimental research does not need to use a high degree of control.
D) that experimental research is more credible than low-constraint research.
Question 2
At the correlational level, the hypothesis is concerned with
A) causality.
B) confounding relationships among variables.
C) relationships among variables that might be used to make predictions.
D) theories of prediction.
TYPES OF RESEARCH
If you want to show differences between items at the same time, a bar graph is more effective than a
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