LS15 MIDTERM - UCLA Phelan Practice Questions and Answers
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Course
LS15
Institution
University Of California - Los Angeles
LS15 MIDTERM - UCLA Phelan
Practice Questions and Answers
1. Scientific thinking, what is it for? and be able to use it - Answer️️ -
scientific thinking - Answer️️ -- empirical (based on observations and
experiences not solely logic)
- self correcting
- observation
- hypotheses
- pr...
class example: real vs artificial vanilla in chocolate chip cookies -
Answer✔️✔️-- Phelan baked batches of cookies with real vanilla and with
artificial vanilla
- asked wife which one tasted better
- concluded that there was no difference in taste between the types of
vanilla used
class example: is maze running genetic in mice? - Answer✔️✔️-- have "maze
dull" and "maze bright" mice
- with each generation, test all mice for maze learning ability and breed
only the top 20% and bottom 20%
- observe new generations
- conclusion: over time, the extremes got more and more exaggerated
- maze running is not genetic but the allele for fear is in mice; less fear =
solve maze quicker, more fear = solve maze slower
how to increase experiment's power - Answer✔️✔️-- randomize subjects
- control your study
- use a double-blind design
R.C.D. - rat's cause diseases
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