Descriptive and inferential statistics Flashcards
(20 cards)
What are descriptive statistics
Patterns and trends in the data
What are the 2 measures of descriptive statistics
Measures of dispersion and measures of central tendency
What are examples of measures of central tendency
mean, mode, median
What are examples of measures of dispersion
Range and standard deviation
What are inferential statistics
The likelihood that the IV affected the DV
What is the measures of inferential statistics
P value using different tests(ordinal, nominal and interval)
What is nominal data
Categorical data
What is ordinal data
Ranked data but not standardised(subjective)
What is interval data
Ranked data that is standardised(uses a scale)
What is the Mann whitney test
Test of unrelated difference, ordinal data
What is Wilcoxon test
Test of related data, ordinal
What is Spearman’s rho test
Test of correlation, ordinal
What is the unrelated T test
Test of unrelated difference, interval
what is the related T test
Test of related difference, interval
What is the Pearson’s test
Test of correlation, interval
What is chi squared
test of unrelated difference and test of correlation, nominal data
What is sign test
Test of related difference, nominal data
How do you calculate the calculated value(S value) of the sign test
sum all the positives and negatives and use the smallest total
What is the rule for a critical value in sign test
The calculated value(S value) must be equal to or lower than the critical value
what is the P value in psychology
P<0.05
