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PSYB07H3 Study Guide - Summer 2018, Comprehensive Midterm Notes - Video Game, Statistical Inference, Socioeconomic Status


Department
Psychology
Course Code
PSYB07H3
Professor
Dwayne Pare
Study Guide
Midterm

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PSYB07H3
MIDTERM EXAM
STUDY GUIDE
Fall 2018

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PSYB07 - Data Analysis in Psychology
Lecture 1 - Basic Concepts
Readings: Chapter 1
Lecture Outline
Math Review
Population vs. Sample
Variable
Displaying Data
Math Review
Order of Operations
BEDMAS
Brackets
Exponents
Division & Multiplication
Addition & Subtraction
Population vs. Sample
Population - entire collection of events in which you are interested in studying or looking
at
Doesn’t matter how big
Sample - a subset of the population
A small section
E.g., tutorial (because it is not everyone in the class)
Let’s say I’m in the car with three of my friends, and we are trying to decide where to go
for dinner
Korean BBQ?
3 Answers: Tim, Jess & Sijing
What’s the population? The 3 friends and him (the one asking)
What is the sample? The 3 friends and him
How big is the population/sample? 4 people
Let’s say I’m in a bus and we are trying to decide where to go eat
3 Answers: Tim. Jess & Sijing = Korean BBQ
What is the population? Everyone on the bus
What is the sample? The 3 friends
How big is the population/sample? Number of people on the bus
Representative?
External validity
The degree to which the sample reflects the population
Sample size - the act of choosing the number of observations or replicates to
include in a sample
Random sampling
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Every member in the population has an equal chance of being selected
E.g., picking out names from a hat
First-person shooter game and spatial attention
We think that some video games can change things such as attention
Experiment: gamers vs. non-gamers, which one has a quicker reaction times?
Intro to psychology students -> external validity?
Socioeconomic status
Assume that people in university come from families that are more
privileged (racial, cultural biases)
Age
Young adults mostly in university
Education level
Gamers vs. Non-Gamers
Performance on UFOV task (accuracy)
Are they good at determining where that dot pops up?
Subject #
Game
UFOV
Gender
1
Y
75%
M
2
Y
78%
M
3
Y
80%
F
4
Y
77%
M
5
Y
81%
M
6
N
48%
F
7
N
50%
F
8
N
55%
M
9
N
53%
F
10
N
45%
F
Spatial Attention
Gamers vs. Non-Gamers
Male vs. Female
Internal Validity
The degree to which an experiment measures what it is supposed to
Is it really video game skill that we are measuring?
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