Avariable is any quality or characteristic of a research investigation that has two or more possible values. for each of the following research statements, identify the variables.
a) research statement: for decades, researchers have questioned the effects of pictures on learning from text. some suggest that pictures distract the reader, whereas others indicate that pictures assist the reader in comprehending the text. this study compares ninth-grade readers' comprehension of science text with and without pictures.
what is the independent variable, and what is the dependent variable?