Term

Definition
helps describe data by reducint it for easier interpretation a12, b9, c18 


Term

Definition
a collection of numbers 6,8,10 


Term

Definition
group intervals, percentage, and cumulative frequency 010, 1120 


Term

Definition
helps make data more manageable 


Term

Definition
what is a typical score? uses one number to characterize distribution 


Term

Definition
describes how data or scores are dispersed across a distribution 


Term

Definition
range, variance, standard deviation 


Term

Definition
difference between maximum vallue and minimum value in a distribution 


Term

Definition
statistical average of the amount of dispersion in a distribution of scores...how they vary from the mean 


Term

Definition
difference between an individual score and the mean of a score of a distribution 


Term
normal distribution (bell curve) 

Definition


Term
standardization and zscores 

Definition
converts raw scores into standard deviation units how far above or below the mean a score is in sdu allows for comparisons of apples and oranges 


Term

Definition


Term

Definition
always there because of how samples are drawn, generally 5%...confidence level 


Term

Definition
as long as you have a large enough sample, sampling distribution of the mean will be normally distributed more than 30 samples are needed 


Term

Definition
comparing two groups' mean scores 


Term

Definition
extension of the ttest and used to investigate several independent variables simultaneously 


Term

Definition
measures how two variables change in relationship to another 


Term

Definition
uses association between two variables to make predictions _____to the normal curve 


Term

Definition
parametric and nonparametric 


Term

Definition
value that compares observed with expected frequencies if the value equals or exceeds value on table, then statistically significant use on content analysis, observation, experiment 


Term

Definition
same as x2 but two or more variables are tested at the same time 


Term

Definition
compare scores from diff. methods
one of the most used stats 

