Chapter 2 - Psychology Flashcards
conceptual definition
abstract idea of the variable
operational definition
how variable is being manipulated
p level
probability that results are due to chance no relationship
statistical significance
results are unlikely due to chance
p<.05 = chances are due to pure chance
Correlational Method
Describes correlation or relationship between variables
Correlation Coefficient
Measures direction and strength of relationship between 2 variables
+r (Positive)
High scores associate with high scores
-r (negative)
High scores associate with low scores
Control Group
Comparison group
Mandane
How much do they look like real world (doesnt matter)
Internal Validity
Degree to which we can be certain that independent variable, caused change in dependant variable
External Validity
Degree to which results can be generalized outside the study to other situations & people