Groups a and B Were Found to Be Significantly Different

Multiple Choice

Groups A and B were found to be significantly different on a test of spelling.Group A had been taught a new method of spelling, and Group B was the control group.Although random selection was not possible, subjects were randomly assigned to the two groups.Based on the significance of the study the research concludes that the new method will help children read quicker.The researcher

A) made an interpretation not based on the data.
B) needs to consider the limitation of sampling procedures.
C) needs to describe the characteristics of the two groups.
D) All of these are true.