1. BY: Nyshad Thatikonda Alex Tran Miguel Suarez

2. How to use this power point 1) Click on the box with the number. Best to click on the black part and not the number directly. 2) 100 = easy 500= hardstar= hardest question 3) When the question appears on the screen answer it. 4) Then click in the same page and the right answers should appear. 5) When done, hit the home button on the bottom of the screen to go back to the main page 6) If you are done answering all the questions and want to redo them later, escape out of the slide show and restart it so the answers can’t be seen right away. 7) Hope this helps to review for the AP Exam and good luck!

4. A dummy treatment that has the same appearance as the original. It is usually a pill. Placebo

5. Neither the subjects nor the people who have contact with them know which treatment a subject received. Double-blind experiment

6. Imposes some treatment on individuals in order to observe their responses. Experiment

7. Observes individuals and measures variables of interest but does not attempt to influence the responses. Observational Study

8. Entire group of individuals that we want information about. Population

9. A part of the population that we actually examine in order to gather information. Sample

10. Only the subjects don’t know which treatment they received. Single-blind experiment

11. Occurs if the subject favors the placebo and responds to the dummy treatment. Placebo effect

12. The observations are matched in pairs from the same group. Matched pairs design

13. Attempts to contact every individual in the entire population. Census

14. Experimental units called if they are humans Subjects

15. Occurs when an individual chosen for the sample can’t be contacted or does not cooperate. Nonresponse

16. Happens if the design of a study is systematically favors certain outcomes. Bias

17. The effects of lurking variables on the response, most simply by comparing two or more treatments. Control

18. A sample chosen by chance. Probability Sample

19. Occurs if the question is asked about illegal or unpopular behavior. Response bias

20. Occurs when some groups in the population are left out of the process of choosing the sample. Undercoverage

21. A specific experimental condition applied to the units. Treatment

22. Occurs when sample members are self-selected volunteers Voluntary response bias

23. Explanatory variables in an experiment. Factors

24. A way to have an equal chance for an individual to be chosen, to avoid bias. Simple random Sample (SRS)

25. The random assignment of units to treatments is carried out separately within each block. Block design

26. Provides an alternative method for producing data in circumstances such as when it is logistically difficult or simply inconvenient to obtain a sample or to impose a treatment. Simulation

27. The size of the groups and which treatment they receive, and the response variable are all present. Randomized comparative experiments

28. First divide the population into groups of similar individuals. Then choose a separate SRS in each stratum and combine these SRS to form the full sample. Stratified random sample

29. Most important influence on the answers given to a sample survey. Confusing or leading questions can introduce strong bias. Wording of questions