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PSY100H1 Study Guide - Dependent And Independent Variables, Behaviorism, Visual Angle


Department
Psychology
Course Code
PSY100H1
Professor
Dax Urbszat

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Psychology Lab Notes Semester 1
General Introduction
Psychology is the scientific study of behaviour
oWhy do people behave the way they do?
oTo prove that x causes y while z is held constant (i.e. ruled out)
Scientific method
oX- independent variable
oY- dependent variable
oZ- control variable
oPart 1
To prove that x causes y
Measure behaviour twice
oOnce when x is present
oOnce when x is not there
This is to check that behaviour does not get caused
without the presence of x
Basically avoiding the placebo effect
oPart 2
WHILE CONTROLLING for other relevant causes
Only one thing should change in behaviour twice
Everything else should remain constant

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Change one thing and see what happens
Every
experiment
question:
o
WHAT
IS
THE
EFFECT OF X ON Y WHILE CONTROLLING Z?
oWHAT IS THE DESIGN OF THE EXPERIMENT?
Task description
Independent variable
Dependent variable
Control variable
Lab 1: Motor Skills and Distraction
Variable X (independent)
oAmount of distraction
Variable Y (dependent)
oMeasuring eye/hand coordination
How are we measuring?
Distance (in mm) on target in 10 seconds
Variable Z (control)
oCounterbalancing and averages (controlling the 2 errors)

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Progressive error
When on condition gets more benefit from practice than other
oIt changes performance
Getting better as you practice more
oEx. DART BOARD
Getting better with every throw
6 on the first try
6 on the second try
Random error
Variability in responding due to controllable factors
oEx. Golf ball
How far can you hit?
oCounterbalancing
Strategy to balance trials in an experiment to avoid progressive error
(ABBA)
Control random error by repeating trials and computing averages
Average = true estimate
Answer these questions in ½ page each.
oHow does Dart board example express progress error?
oHow does golf ball illustrate random error?
oWhat is the scientific method
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