Lecture 2--Research Methods for students 3 slides

Lecture 2--Research Methods for students 3 slides - 9/29/10...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
9/29/10 1 R ESEARCH M ETHODS PSC 001 Section 003 Fall 2010 Outline Why we need careful research designs The scientific method Types of psychological studies An introduction to statistics Studying people and animals ethically Careful research designs
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
9/29/10 2 Meet Clever Hans What did Clever Hans really learn? Clever Hans: A cautionary tale Observer/experimenter expectancy effects Needed to be skeptical and test alternative hypotheses Extraordinary claims require extraordinary evidence Reliance on subjective impressions Not controlled observation by “blind” observers
Background image of page 2
9/29/10 3 How mental shortcuts can get us lost… Heuristic = Mental shortcut Helps us quickly sort through information Works most but not all of the time Two types of heuristics Representative heuristic Availability heuristic How mental shortcuts can get us lost… Cognitive bias A systematic error in thinking Three types of cognitive bias Overconfidence Confirmation bias Hindsight bias What is the solution? The scientific method! Research = Scientific process involving systematic collection and analysis of data
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
9/29/10 4 The Scientific Method The Scientific Method Scientific Theories & Hypotheses Scientific theory An explanation for a large number of findings in the natural world Good scientific theories… …generate hypotheses …lead to empirical research …are falsifiable
Background image of page 4
9/29/10 5 Scientific Method Prediction based on theory and experience Where and how will the data be collected? And revise theory, if necessary Statistics Test of the hypothesis Six Principles of Scientific Inquiry Extraordinary claims require extraordinary evidence For a claim to be meaningful, it must be falsifiable Occam’s Razor: If two hypotheses explain a phenomenon, select the simpler one A finding must be capable of being replicated Do more research until alternate hypotheses can be ruled out Correlation causation What are the Goals of Psychology? Control Explanation Description Prediction
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
9/29/10 6 Types of Psychological Studies Planning a Study Must answer 3 questions: Where? Where will my study take place? (Research Setting) How? How will I collect my data? (Data Collection Method) What? What will my study look like? (Study Design) A Common Vocabulary Variable : Anything that can be measured and that can vary In research, these are either measured or manipulated Operational definition : Description of an abstract property in terms of a concrete condition that can be measured Example: How do we DEFINE depression in a way that can be measured?
Background image of page 6
9/29/10 7 A Common Vocabulary Measure : A device that can detect the measurable events to which an operational
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 20

Lecture 2--Research Methods for students 3 slides - 9/29/10...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online