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ERIC Number: ED110462
Record Type: RIE
Publication Date: 1975-Apr
Reference Count: 0
A Two-Factor ANOVA Model for Time-Series Experiments.
Willson, Victor L.
A theoretical model is developed for analysis of intervention effects in multiple autocorrelated time-series which may be classified or blocked two ways. The intervention effect is estimated independently for each series. The estimates are then entered as observations in two-factor analysis of variance with one observation per cell, utilizing a pooled variance error estimate for the mean square error. The model was tested empirically through the use of Monte Carlo techniques, and results are presented in tabular form for Type I and Type II error levels. An example is presented with data taken from a Kansas City Police study utilizing the two-factor layout. (Author)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the American Educational Research Association (Washington, D.C., March 30-April 3, 1975)