Class2_ResearchMethods

Class2_ResearchMethods - Psyc 1101 Research Methodology May...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
Psyc 1101 Research Methodology May 20, 2010
Background image of page 1

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

View Full DocumentRight Arrow Icon
Business Textbook is available at Barnes and Noble @ Georgia Tech. I know T-square is still not updated.
Background image of page 2
Outline for Today’s Class Review of previous class Measurement and terminology Types of studies Sampling and Statistics Ethics
Background image of page 3

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

View Full DocumentRight Arrow Icon
Scientific Method Theory Encoding Specificity Hypothesis Research Analyze Data Report results Students who take notes on computer will do better on computerized tests compared to students who take notes in notebook. Teach class one semester with computerized exams. One semester without
Background image of page 4
Outline for Today’s Class Review of previous class Measurement and terminology Types of studies Sampling and Statistics Ethics
Background image of page 5

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

View Full DocumentRight Arrow Icon
Measurement Need to capture and quantify properties of the object under study Psychological Constructs “Personality” Tendency to act in a certain way over time and across circumstances. “Intelligence” Ability to understand complex ideas and adapt to environmental challenges. Intelligence
Background image of page 6
Reliability versus Validity Reliability Measures must be consistent Validity Measures accurately reflect what they are supposed to reflect
Background image of page 7

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

View Full DocumentRight Arrow Icon
Are IQ Tests Reliable? Yes Correlation between scores at different test taking times = .90.
Background image of page 8
Validity of IQ tests Highly Correlated with Performance .50 for high school grades .45 for job future job performance
Background image of page 9

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

View Full DocumentRight Arrow Icon
Reliability versus Validity Validity Measures accurately reflect what they are supposed to reflect Reliability Measures must be consistent As Psychologists, we are typically interested in how measures vary Across individuals and across situations
Background image of page 10
Measurement Issues: A Summary Psychological constructs are often difficult to measure. Because they are often no physical characteristics, a good measure has high validity and is highly reliable. Once measures are created, we are interested in how performance can be changed.
Background image of page 11

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

View Full DocumentRight Arrow Icon
Some Terminology VARIABLE: Something in the world that can be measured and that can vary. INDEPENDENT VARIABLE: The variable whose effects are to be examined. Often manipulated by experimenter. DEPENDENT VARIABLE: The measure that is affected by the independent variable. “Does this value of variable depend on something else?”
Background image of page 12
In order to determine if texting while driving impairs driving performance, some participants are put into a driving simulator and are required to drive while texting while others are asked to drive without texting. Total number of lane violations are recorded. Independent?
Background image of page 13

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

View Full DocumentRight Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 68

Class2_ResearchMethods - Psyc 1101 Research Methodology May...

This preview shows document pages 1 - 14. Sign up to view the full document.

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