LS 15 PHELAN UCLA FINAL EXAM NEWEST COMPLETE 100 QUESTIONS AND CORRECT DETAILED ANSWERS

LS 15 PHELAN UCLA FINAL EXAM NEWEST COMPLETE 100 QUESTIONS AND CORRECT DETAILED ANSWERS ( ANSWERS)

1 P a g e LS 15 PHELAN UCLA FINAL EXAM NEWEST 2026-2027 COMPLETE 100 QUESTIONS AND CORRECT DETAILED ANSWERS ( ANSWERS) what are the steps of the scientific method? - ANSWER- 1. make observations 2. formulate hypotheses 3. make a prediction 4. conduct an experiment 5. conclusion what 2 things make a hypothesis good? - ANSWER- testable and refutable what does a prediction sound like - ANSWER- if my hypothesis is true, when i do X, then Y will occur what is scientific thinking? - ANSWER- 1. we make observations 2. we formulate hypotheses 3. we make predictions (based on the hypotheses) 2 P a g e 4. we devise and carry out experiments (to test the hypotheses and alternatives) 5. we draw conclusions, modify hypotheses, (and continue the process) what does scientific thinking do? - ANSWER- scientific thinking illuminates situations in which we should change what we think what is at the core of scientific thinking? - ANSWER- the ability to imagine a "critical experiment" how can you increase your experiment's power? - ANSWER- 1. randomize subjects across control and experimental groups 2. control your study 3. use a double blind design which experimental tests are better? those done in lab, or in the real world? - ANSWER- the better controlled an experiment is, the more confidence we should have in its results. however, as experiments are better controlled they often are poorer models of the situation of interest (less generalizable) 3 P a g e pseudoscience - ANSWER- presenting information that is not true, or was not achieved through true scientific thinking/experiments anecdotes - ANSWER- when we are overly biased on careful study and/or not representative of the norm; the "vaccines cause autism" idea pseudoscience capitalizes on the belief that: - ANSWERscientific thinking is a powerful method for learning about the world, and therefore people are likely to believe pseudoscience even if it is not true the regeneration of skin cells after a laceration may be attributed to - ANSWER- mitosis individuals that have the same genotype for a given trait: - ANSWER- can have different phenotypes for that trait; environment and norm of reactivity when gametes are produced through meiosis, each sperm or egg generally ends up with: - ANSWER- exactly one copy of each autosome