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Apendix A
Stats
21
Psychology
Undergraduate 1
01/23/2014

Additional Psychology Flashcards

 


 

Cards

Term
Range
Definition
Difference between smallest and largest data
Term
Variation
Definition
Distance from mean
Term
Standard Deviation
Definition
How the scores vary from the mean
Term
Normal Curve
Definition
Required to be standard deviation
Term
First Deviation Number
Definition
68%
Term
Second Deviation Number
Definition
95%
Term
Z-score
Definition
Another name for deviation
Term
Correlation
Definition
Measure of relationship
Term
Perfect Correlation
Definition
Straight line, no deviation
Term
1 to -1
Definition
Correlation, the closer to the zero the weaker the correlation
Term
Curvilinear Relationship
Definition
Relationship may be positive and negative correlation
Term
Regression Toward the Mean
Definition
Extreme scores regress back to mean
Term
Misrepresentation (Correlation)
Definition
May lead to incorrect conclusions and change graph
Term
Population
Definition
Group from which the samples are taken
Term
Sample
Definition
Representation of the population
Term
Error Rate
Definition
Confidence level, Alpha level, P-value
Term
Error Type 1
Definition
Found effect, but no effect
Term
Error Type 2
Definition
No found effect, but effect
Term
Small vs. Large Samples
Definition
The bigger the effect the less people you need
Term
Validity
Definition
Measures what its supposed to be measuring (accurately)
Term
Reliability
Definition
Does the measure give consistent results (consistency)
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