Am I Normal
I am if these three measures fall at the same point
Mean Median Mode
The ‘gold standard’ for research designs
True Experimental
The Cause in an experimental Study
Independent Variable
Ranked data organized according to increasing or decreasing presence of a characteristic
Ordinal
‘Chance’ hypothesis
Another name for the null
I am if ____ % of my cases fall within 1 SD above and below the mean
Approx 68
Type of test where individual scores are compared to the scores of the standardization sample
Norm Referenced Test
the extent to which results or findings obtained from a sample are applicable to a broader population
Generalizability
Specific procedures used to analyze data to answer hypotheses
Significance Test
Typical ‘levels’ of risk chosen to reject null
.05 and .01
I’m not if my mean and median are very different from each other I have Then I am __________
Skewed
X-M/SD
Formula for a z score
Statistical Analyses actually test these type of hypotheses
Operationalized
Salkind & Frey’s 8 step process used to answer a research question
Hypothesis Testing
Type of t-test to use when you have a directional hypothesis
One-tailed
I am if only 1% of cases falls above/below this z score
2.58, -2.58
The Mean and SD for deviation IQ test scores
100; 15
Alliteration describing the normal curve’s relationship to the X axis. It is __________ to the __________
Asymptotic to the abscissa
Measure of the strength of a result
Effect Size
Rejecting a null when you shouldn’t
Type I (alpha error)
I am if a T score of 17 equals this percentile
1st percentile
A Deviation IQ score of 145 equals this T score
80
Proportion of variability in one variable that cannot is can be accounted for by the variability in the other variable
Coefficient of Alienation
Another name for the Overall result of an ANOVA and/or Factorial ANOVA. The symbol for it is _______
Omnibus test (signified by F)
Three things to help make sure you are using the correct statistical test
Hypothesis
Level of measurement
Number of groups
Are groups related