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PSYCH 111- week 2

by: Alisha Ellis

PSYCH 111- week 2 Psych 111

Alisha Ellis
GPA 2.9
Introductory Psychology
Brother Marrot

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About this Document

This is my week 2 of notes. They go over the end of chapter 2 and two classes on chapter 3. They have been helpful to me. I hope they are helpful to you.
Introductory Psychology
Brother Marrot
Class Notes
25 ?




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This 2 page Class Notes was uploaded by Alisha Ellis on Friday September 25, 2015. The Class Notes belongs to Psych 111 at Brigham Young University - Idaho taught by Brother Marrot in Fall 2015. Since its upload, it has received 19 views. For similar materials see Introductory Psychology in Psychlogy at Brigham Young University - Idaho.

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Date Created: 09/25/15
PSYCH 111 Notes Bro Devon Marriott Continuing Chapter 2 Class 92115 Third Variable Problems 3nd VP How are they stopped Experiments they establishes causal relationships 0 Cause and effect can be determined here 0 Manipulation and random assignment removes the 3nd VP Example Your ash light is not working Ask a question The batteries died Change them nothing happens Ask another question The light bulb is dead Change the light bulb It turns on Manipulation change a variable to determine its causal power Experimentation is ALL about manipulating and controlling the setting to determine a causal relationship Independent Variable IV is what is different between the two groups Ask yourself on the test what is different between the two groups That is the IV Dependent Variable DV the DV depends on the IV Experimental group those who experience a stimulus the IV Control Group those who do not experience the stimulus no IV Does this manipulation change the DV Researcher want these groups to be as similar as possible with the experimental and control group Random Assignment chance assigns people to groups This eliminates Bias I want to know if caffeine will help improve test scores for my students Set it up by Randomly assign half of my students to have caffeine and the other half do not Only can use one class to be sampler group because they are taught differently You can t account for all variables we do the best we can in an experiment IVCaffeine DV test scores Control groupdon t get caffeine Experimental group have caffeine Significance is a statistical procedure but When you have it p less then 05 that means your experiment has a 95 chance of not being due to chance Population complete collection of people 0 BYUI students Sample A partial collection of people from a population 0 BYUI Psychology majors You want to get a good representation for a population Do a political Survey in Rexburg ID Case MethodStudy gather evidence by studying a single individual 0 Ted Bundy 0 Pros o A lot of information 0 Lots of details follow up 0 Cons 0 Not reliable 0 Unable to generalize Random sampling everyone gets equal chances of being picked 0 Representative sample 0 Generalizability 0 Most psych experiment don t random simple Sir Francis Bacon Father of science


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