Terms
Tests
Meaning
Black History
Take a Chance
100
p<.05
What is the standard threshold for statistical significance?
100
independent samples t test
What is the test to compare means between two separate groups?
100
We're 95% sure that it is safe to generalize our sample findings to the rest of the population where the sample was drawn.
What does p<.05 mean? 
100

She became the first black woman elected to the United States Congress, and she represented New York's 12th Congressional District for seven terms.  

Who is Shirley Chisholm?
100
The middle score when scores are ranked from smallest to largest. 
What is the median?
200
probability of error when generalizing from the sample to the population
What does significance (or p value) mean? 
200
correlation
What is the test to identify relationships between two variables?
200
The difference or correlation we observe in the sample likely did not occur by chance?
What does statistical significance mean?
200

Author, educator, lawyer, diplomat, songwriter, and civil rights activist, leader of the NAACP, known during the Harlem Renaissance for his writing, first  African-American professor to be hired at New York University.

Who is James Weldon Johnson
200
Pearson's r
What is a correlation coefficient? 
300
A type of variable that has no order to it, simple a measure of a type.  Some examples are academic subject (math, science, language arts), school name, geographic region. 
What is a nominal variable? 
300
ANOVA
What is the test to compare means between three or more groups?
300
In an ANOVA, there is a difference somewhere among the groups. 
What does the F and significance value of the ANOVA test tell us? 
300
The founder of the Green Belt Movement
Who is Wangari Maathai?
300
A variable measured in standard units with equal distance between the units.  It is possible to get a mean on this type of variable. 
What is an interval variable?
400
A variable that has an order to it, but the distance between all the levels is not necessarily consistent.  An example might be degree aspirations (community college, four-year college, graduate school). 
What is an ordinal variable?
400
paired samples t test
What test is used to compare two measures within one group? 
400
Where the differences lie among the groups in an ANOVA test.
What does a post hoc test tell us? 
400

A network of hundreds of thousands of men and women who have planted tens of millions of trees throughout Kenya

What is the Green Belt Movement?
400

A physician, surgeon, and medical researcher who protested against the practice of racial segregation in the donation of blood. 

Who is Charles R. Drew? 
500
The set of statistical tests that allow us to measure how safely we can generalize from a sample to a population. 
What are inferential statistics?
500
chi square
What test identifies relationship between two nominal variables? 
500
The differences or relationship we observe in the sample cannot safely be generalized to the population from which the sample was drawn. 
What does a non-significant finding mean? 
500
The first African American female athlete to earn a gold medal in the Olympics.  
Who is Alice Coachman? 
500

This is the value that we would expect in a chi square test if everything is even, if there is no relationship between the two variables. 

What is an expected frequency in chi square? 
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