Week 2 Flashcards
What is the P-value
The probability of an occurrence of a given event
Margin of error
expected amount of random variation in a statistic, often 95% confidence level
Longitudinal Study
a study that follows the same group of individuals over time
Operational Definitions
how researchers specifically measure a concept
Dependent Variable
The variable that changes due to manipulation of the independent variable
Independent Variable
a variable you’ll change
4 types of validity
internal, external, face validity, ecological validity
Internal validity
The degree to which a cause-effect relationship has been unambiguously established.
External Validity
The degree to which a finding generalizes from the specific sample and context of a study to some larger population and broader settings.
Face Validity
The degree to which a procedure or method measures what it intends to measure
Ecological validity
The degree to which a study finding has been obtained under conditions that are typical for what happens in everyday life
what are the 2 Sampling methods
Experience and Diary
Experience sampling method?
thoughts and feelings are recorded sporadically through the day
Diary sampling method?
thoughts and feelings are all recorded at the end of the day
