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 |