1. What are some alternative explanations for the results?
2. What type of study was conducted?
3. What mistake did the researchers make when determining which students would be in each group?
4. How did this mistake potentially impact the results of the experiment?
5. What sort of controls could have been used to enhance the experiment's validity?
6. Provide at least one possible ethical violation conducted in the experiment?
7. Explain why it is import to write thorough and accurate operational definitions

Experiment Il A study was conducted in which educational researchers were looking to find if the use of flash cards improved student weekly quiz (worth 4 points) performance; students were chosen individually for each group by their teachers. Students aged 12-14 were selected from the local middle school and used for the experiment and were tracked across five weeks to see their scores, both with and without the use of flashcards prior to the 4-point quiz. On the following page, graph the two sets of data on a histogram. Note: When graphing two sets of data on a histogram, there should be two separate graphs to display each data set. Students Without Flash Cards Students With Flash Cards Average Score Average Score Week 1 2 Week 1 2 Week 2 3 Week 2 3 Week 3 1 Week 3 2 Week 4 1 Week 4 4 Week 5 1 Week 5 3 AP Psychology College Board Unit Guide learning objectives: 1.L, 1.M @Morgan AP Teaching