| A | B |
|---|
| CPI | what we have to divide into money income in order to get "real income" as adjusted for inflation |
| FISHER IDEAL | an aggregate price index which is the geometric mean of two other aggregate indices |
| LASPEYRES | aggregate index using old product quantities as a base |
| PAASCHE | aggregate index using new product quantities as base |
| DOW JONES | aggregate index of 30 stocks |
| STANDARD & POOR | aggregate index of 500 stocks |
| PERCENT CHANGE | 100 * (new value - old value) / old value |
| 100 | index value showing no change from base time |
| UNWEIGHTED INDEX | an index which does not take into account relative consumption patterns (e.g., that more people purchase gasoline than aviation fuel) |
| REAL INCOME | a person's dollar income divided by the CPI |
| SECULAR | a consistently rising or falling trend |
| SEASONAL | variation taking place within a year |
| CYCLICAL | consistent variation taking place in a period longer than a year |
| AGGREGATE | a composite index considering many different prices, usually weighted |
| AUTOCORRELATION | when successive DV measures are correlated |
| CORRELATION MATRIX | a table showing the correlation between all combinations of variables |
| CROSS LAGGED & PATH ANALYSIS | correlational analysis that attempts to infer causation |
| DUMMY | a binary nominal variable coded as 1 for yes and 0 for no |
| DURBIN WATSON | a test for multicollinearity |
| EXTRAPOLATION | estimation using a line graph, but extending beyond the range for which we have data |
| HETEROSCEDASTICITY | when the strength of an association is not constant over the range of the IV |
| HOMOSCEDASTICITY | when the strength of an association is constant over the range of the IV |
| LINE GRAPH | the type of graph used for showing time series changes |
| MULTICOLLINEARITY | the degree of inter-correlation between IVs |
| OUTLIER | unusually high or low scores which can distort parametric measures |
