Midterm
Terms
undefined, object
copy deck
- achievement test
- what you've learned to this point
- ordinal scale
- puts items in rank order
- Standardized Test
- given the same way at the same time across a population
- reliability
- does it get the same results multiple times
- Standard Deviation
- unit of measure of the distance a score lays from the mean
- Independent variable
- the "cause"; manipulated variable
- z score
- summarizes how many standard deviations away from the mean a score is
- Range
- distance from high to low
- equal interval scale
- equal space between numbers
- norm referenced test
- scores compared to the norming groups' scores
- stratified random sample
- sample based on proportion (randomly) compared to the whole population
- dependent variable
- "effect"; changes based on independent variable
- Mode
- most frequent score
- validity
- does it test what it is expected to test
- random sample
- everyone has equal opportunity to be selected
- Statistic
- measure of a sample
- aptitude test
- predics ability to achieve in a specific area
- nominal scale
- gives a label
- Mean
- Average
- Median
- Middle most score
- Parameter
- measure of a population
- ratio scale
- there is an absolute "0"
- correlation coefficient
- represents how closely two variables are related (degree of slope in a graph)
- population
- whole group represented by data