The Statistics in Psychological Testing Flashcards
Nominal Variable
The data can be organized.
Ordinal Variable
The data can be organized and ranked.
Interval Variable
The data is evenly spaced and can be both ranked and categorized.
source:https://www.scribbr.com/statistics/levels-of-measurement
Statistical Tests
The procedure used to evaluate the extent of how accurate an empirical hypothesis is.
source: https://dictionary.apa.org/statistical-test
Probability
The likelihood of an event taking place
Validity
The degree to which empirical evidence supports conclusions drawn from it.
Reliability
The extent to which the results of a study are consistent and free of measuring error.
External Validity
The extent to which the results obtained from the experimental sample can be generalized to a larger population.
Internal Validity
The extent to which a study is unblemished on the internal level and to which the results can be considered sound.
Independent Variable
The value which is manipulated in order to observe its influence on the dependent variable
Dependent Variable
The change we are to observe after the independent variable is manipulated
Correlation
Extent of the relationship between two variables.
source: https://dictionary.apa.org/correlation
Correlation Coefficient
A numerical value quantifying the extent of the relationship between two variables.
Sample
A part of population selected for a study.
source: https://dictionary.apa.org/sample
Descriptive statistics
Set of procedures used in order to meaningfully summarize samples of data.
source: https://dictionary.apa.org/descriptive-statistics
