Measure of CT used for categorical data
Mode
Ranked data organized according to increasing or decreasing presence of a characteristic
Ordinal
Making sure we are measuring what we think we are
Validity
Chance’ hypothesis
Null
Other terms for the cause and the effect
IV & DV
Two types of statistics needed to accurately describe a sample
Central Tendency and Variability
Salkind & Frey’s 8 step process used to answer a research question
Hypothesis Testing
Reliability coefficients range from _____ to _____
0 to 1
Typical ‘levels’ of risk chosen to reject null
p < .05 and p < .01
______________ is not causation
Type of distribution in which all three measures of Central Tendency are the same
Normal Curve
Specific procedures used to analyze data to answer hypotheses
Significance Tests
Some say all validity is _____ validity
Construct
Old school value used to determine whether to reject the null or not after a significance test
ciritical value
the extent to which results or findings obtained from a sample are applicable to a broader population
Generalizability
Square root of the variance
Standard Deviation
Measure of the strength of a result
Most commonly used measure of internal consistency reliability
Chronbach's Alpha
Type of t-test to use when you have a directional hypothesis
One-tailed
Type of questionnaire that collects background information.
Demographic
Proportion of variability in one variable that cannot is can be accounted for by the variability in the other variable
Coefficient of alientation
___ is the symbol for the results of an ANOVA. What Another name for these overall results? (Two part question)
F, omnibus
Confidence Interval specifically used for bracketing individual scores on a test
Standard Error of Measurement
Accepting a null when you should have rejected it
X-M/SD
Formula for a Z score