New Seating!_Period 1

1. New Seating!_Period 1 Dyani Melanie Luis O. Lucia Alexa Jessica Marianne Daniel M. Shan Vanessa CristianYazmin Maria James Steve Sara Dennis K. Letty Abraham Sally Joseph Nicole Derrick Ida Dennis M. Maddie Samantha Daniel V. Lauryn Gilberto Estefania Lonnie Luis G. Nancy

2. New Seating!_Period 2 Curtis Joel Kenderick Maria G. Simonne Mary Brandon Tanaee Stephen Anais Itza Samuel Dawna Maria M. Nicole Daniella Michael J. Dario Casey Lamontae Jennifer Alexis Sharron Alexandria Karina Cecilia Amanda Antonio Shirley Destiny Daisy Ayanna Adriana Nyla Luz KyiwonTaniya

3. New Seating!_Period 5 Reyana Maribel ShamiyaSelina Jocelyn Miguel Alejandro Dimarre Laron Henry Ricardo Abran Jackie Kyle Jasmine Tim Eva Jay Emily Jerry Destiney Naomi Aaron Michael Rocquel Alexis Taneya Mitchell Marquell Alyssa

4. Do Now • Pick up a sheet from the front of the room. • You have 7 minutes to complete this sheet. • Please write all answers in decimal form. • Try the challenge question!

5. Trade and grade!! • Find a pen of different ink. • Trade with a neighbor. • Write your name at the bottom.

6. Ethics Debate: Group 6Animal Rights

7. Morale • 10 students attempted the DNQ over the weekend. • All DNQ questions are from past AP Tests. • You’re not failing because they’re too hard. • You’re failing because you’re not studying. • They are strategically planned so they can be taken before tests. Sometimes the questions show up on class assessments. • If you’re not ready for DNQs, you’re not ready for assessments. • If you continue to not take this seriously, DNQs will be a bigger part of your grade.

8. Skewness & Central Tendency Today, I will be able to… Apply basic descriptive statistical concepts, including interpreting and constructing graphs and calculating simple descriptive statistics. Use information from one or more sections of a more challenging passage to draw conclusions.

9. Agenda • Do Now • Wrap up Ethics Debates • Skewness and Central Tendency Lecture • Prep for Quiz on Wednesday • Homework: • Study for Wednesday’s Quiz and Friday’s UNIT TEST • Read Myers, 46-55 before the end of the week • Take notes • Draw and label the parts of a neuron • You will get another reading on Friday for the weekend

10. Normal Distribution • Mean • Median • Mode

11. Skewness • Too much data on one side of the distribution.

12. How Does Skewness Affect Measures of Central Tendency • What happens in a NEGATIVELY skewed distribution? • What happens in a POSITIVELY skewed distribution? Ex: Life Expectancy Ex: Income

13. Last Note on Research Design • Descriptive Research • Case Study • Naturalistic Observation • The Survey • Correlational Research • Experimental Research • Quasi-Experimental Research • Longitudinal Studies • Cross-Sectional Studies

14. How does Research Design allow us to make conclusions? • Analyze – To investigate the component parts of a whole and their relations making up the whole. • Generalize – To reduce to a general form. To make universally applicable. To draw a general conclusion from. • To make a generalization means to observe an idea, describe that idea, and then to make a logical conclusion about that idea. • Record observations directly from the text. • Go an extra step forward in your head. Draw conclusions based on each observation that is not explicitly stated.

15. Practice • A teacher finds the distribution of scores on a final exam to be positively skewed with low variability. On the basis of this information, the teacher would be most justified in concluding that…. • Could she say that the test was too easy? • Could she say that the test was too hard? • Can she assume students didn’t study? • Can she assume the test is unreliable? • What can she do?

16. Practice • You perform a study on hamsters assessing the relationship between stress and weight loss. You control for all the extraneous variables you can think of (diet, exercise, companions, etc.) and apply a stressor to the hamsters. You weigh them weekly and find the following relationship: • Approximately what correlation does this graph show? • You perform data analysis and find ap-value of 0.003. Is your data significant? • Based on this information, what can you conclude about the relationship between stress and weight loss?

17. Homework • Take out your tables that were for homework. • How did you operationalize your variables? • Graph your data as a bar graph and a line graph. • Remember your Title, Axes Titles, and Legend

18. Homework • Graph your data as a bar graph and a line graph. • Remember your Title, Axes Titles, and Legend

19. Homework • Take out your tables that were for homework. • What were some conclusions you could draw from your data? • I can assume that people buy less food overall if they live with fewer people. • People buy more meats and grains than fruits and veggies or junk food. • Meats and grains are more filling?

20. What’s Fair Game? • Criteria for Research • Goals of Research • Types of Research Design • Drawing Conclusions • Correlation vs. Causation • Constructing and Interpreting Graphs • Variables • Operational Definitions and Measurements • Random Assignment vs. Random Selection • Descriptive vs. Inferential Statistics • Skewness • Validity vs. Reliability • Ethics

21. Exit Ticket Note: If you are having difficulty with these questions, you are not ready for Wednesday’s Quiz and should study. • A teacher requires all of her students to fill out a survey. What ethical guideline has she violated? • Which measure of central tendency is most influenced by extreme scores? • A researcher takes a survey of study habits in the senior class and declares that Muchin teaches all of its students superior study skills. • What is his independent variable? • What is his dependent variable? • Can we infer causation or are his results correlational? • Is his conclusion valid?