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Study Guide

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

by OC2024594

Department

PsychologyCourse Code

PSYB07H3Professor

Dwayne PareStudy Guide

MidtermThis

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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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