Textbook Notes (369,035)
Canada (162,359)
Psychology (4,929)
Psychology 1000 (1,640)
Dr.Mike (707)
Chapter 2

Ch. 2 - Research Methods, Sept 18.docx

4 Pages
68 Views
Unlock Document

Department
Psychology
Course
Psychology 1000
Professor
Dr.Mike
Semester
Fall

Description
Chapter 2: Research Methods Scientific method the method psychologists use to obtain data and results 1) Identify the method 2) Hypothesis suggests a prediction that will happen between 2 or more events 3) Theory - A collection of hypothesis - An organizing system - More general and elaborate - Good theories generate testable hypotheses, a poor theory is not easily testable - Examples: Theory of Relativity and Behaviour Theory are both measurable, therefore testable 4) Design & Execute Experiment - Most important part - Identify variables as independent (manipulated) and dependent (measured) - Independent causes the dependent variable to change under various conditions - Without proper control, the experiment is confounded and therefore useless 5) Determine the “Truth” - Do the results support the hypothesis - Are there any differences? Statistics help determine this 6) Communicate the Results - Publish a report in journal - Present a verbal description of results - Discuss several related experiments in book chapter 1) Survey Research - Involves administering questionnaires/interviews to people - Surveys study a sample of people that is randomly drawn from the larger population - Representative sample reflects the important characteristics of the population - To obtain a representative sample, researchers use random sampling in which every member of the population has an equal opportunity of being chosen to participate in the survey - Stratified random sampling divides the population into subgroups based on characteristics (ie. Gender). For example, 45% of the population is male, then 45% of the sample will be allocated for males Advantages: A properly selected, representative sample typically yields accurate information about the broader population Disadvantages: Unrepresentative samples may yield misleading results. Interviewers bias and social desirability bias (ie. Inaccurate perceptions of behaviour) can distort the results 2) Correlational Research - Method of measuring the degree between two variables - Contains 3 components:  The researcher measure’s one variable (X)  The researcher measure’s a second variable (Y)  The researcher measure’s whether X and Y are statistically related - Correlation does not cause causation - Causal conclusions cannot be drawn from correlational data. Variable X may cause Y and vice versa. A third variable may even be the cause of X and Y. - Correlation coefficient is a statistic that indicates the direction and strength of the relation between 2 variables - Positive correlation high scores on one variable is associated with higher scores on a second variable  Example: More satisfying relationships will equate to more happiness - Negative correlation high scores on one variable is associated with lower scores on a second variable  Example: Higher job satisfaction equals lower job turnover 3) Cause-and-Effect - A well designed experiment is the best way to examine cause-effect relations - Experiments have three essential components:  Independent variables 1 or more variables that are manipulated  Dependent variables A variable affected by independent variables  Extraneous factors are eliminated to avoid confoundi
More Less

Related notes for Psychology 1000

Log In


OR

Join OneClass

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

Sign up

Join to view


OR

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.


Submit