Study Guides (238,095)
Canada (114,916)
Psychology (434)
PSY 105 (57)

PSY105 - Chapter 2

4 Pages
Unlock Document

Ryerson University
PSY 105
Helene Moore

PSY105 ­  Chapter 2 A good theory must be proven false: it must be falsifiable CHOOSE PARTICIPANTS FOR THE STUDY • Population: The entire group of interest to researchers • Sample: a portion of any population • Random Selection: randomly choosing a sample from a population • Sampling bias: choosing a sample that doesn't represent your population BASIC TYPES OF RESEARCH • Descriptive: method used to observe and describe behaviour and determine the relationship between the variables o Case Study Method - study of 1 or 2 people  Pro: useful for if only looking for a rare type of behaviour  Con: cannot generalize results to all people o Naturalistic Observation - people watching  Pro: study can be unethical or people might lie  Con: cannot determine cause and effect o Surveys - asking people directly about their behaviour  Pro: data collection is quick  Con: people lie, cannot determine cause and effect • Experimental: demonstrate a cause and effect relationship between variables o Con: might not be able to relate it to real world situation Heat Aggravates Aggression Experiment • Disadvantage: bring people to lab for artificial situations and hope it occurs in the real world • Two kind of variables in experiment:  Independent Variable (IV) - variable you can manipulate --> cause "Is gas important for the car?"  Dependent Variable (DV) - outcome After you give the cause "what happens next?" • Example #1:  IV = sunlight exposure vs no exposure ; DV= people's depression • Example #2:  IV= amount of times student reads (never, everyday) ; DV= exams performed Two Groups • Experimental group: group exposed to IV • Control group: group not exposed to IV and is used to compare how the IV changes DV
More Less

Related notes for PSY 105

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.