Chapter 2 Flashcards
Hypothesis
a proposition, or set of propositions, set forth as an explanation for the occurrence of something
Repicability
If a study is made, same result has to happen every time in order to be valid
Operational Definition
Exact procedure used in a study
Population
EVERYONE
Representative Sample
Your sample matches society
Random Sample
Random participants
Cross Cultural Sample
How cultural factors influence behavior
Experimenter Bias
Bias towards the result expected
Blind Study
Participants don’t know what is being measured
Blind Observer
Experiment in which information is lead to bias
Double Blind Study
Experimenter and participants don’t know what is being measured
Naturalistic Observation
Watching behavior in natural setting
Case History
study of ONE individual usually over a period of time
Surveys
Questionarie asks people about certain topic
Controlled Experiment
Control group
Correlation
Show of relationship between two variables
Correlational study
used when you want to take a look at variables and see if they have any relationship
Correlational Coefficient
Measure of how strong two variables are related. Goes from -1 to +1 and is shown in scatterplot
Dependent Variable
Stays same. Measurable variable
Independent variable
Manipulated
Random Assignment
Random participants
Control Group
Does not receive Independent variable
Experimental group
Receives independent variable
Informed consent
Approved by APA
Mean
Average
Median
Middle
Mode
Most repeated
Standard deviation
How much variation exists from the mean
Inferential statistic
trying to reach conclusions that extend beyond the immediate data alone.
Reliability
consistency of a measure
Hind Sight Bias
“I knew it all along” people look for evidence or support
False Consensus Effect
people overestimate how many agree with them
Placebo
“Fake” variable
Scatter Plot
Shows how strong is correlation
Illusory correlation
Appears to be strong correlation but not really one
Statistical significance
degree to which a result cannot reasonably be attributed to the operation of chance or random factors alone
Psychology Dictionary: http://psychologydictionary.org/statistical-significance/#ixzz2ckHzf2BX
Kenneth Clark
first black Ph. D recipient in Columbia University history
Daniel Kahneman
an Israeli-American psychologist and winner of the 2002 Nobel Memorial Prize in Economic Sciences. He is notable for his work on the psychology of judgment and decision-making, behavioral economics and hedonic psychology.
James Randi
known for his challenges to paranormal claims and pseudoscience
Amos Tversky
cognitive and mathematical psychologist, a pioneer of cognitive science