Learning biology with computers An educator wants to compare the effectiveness of computer software for teaching biology with that of a textbook…

Learning biology with computers An educator wants to compare the effectiveness of computer software for teaching biology with that of a textbook presentation. She gives a biology pretest to each of a group of high school juniors, then randomly divides them into two groups. One group uses the computer, and the other studies the text. At the end of the year, she tests all the students again and compares the increase in biology test scores in the two groups. Is this an observational study or an experiment? Justify your answer.
Thank you for your answer! ^_^
 
“Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!”

"Is this qustion part of your assignmentt? We will write the assignment for you. click order now and get up to 40% Discount"