Cumulative sum (CUSUM) control schemes are widely used statistical process control (SPC) methods to ensure that a process of interest performs as designed and intended. Composed of three essays, this dissertation applies CUSUM chart methods to detect aberrant response patterns in the context of standardized tests. The tests we use in the studies were either assembled to meet the specifications of a large-scale testing agency, or were assembled randomly with an approach described in literature.A number of CUSUM schemes have been proposed for monitoring the defective proportion, p, based on various underlying distributions, such as Binomial, Bernoulli and Geometric distributions. Reynolds and Stoumbos (1997, 1999) show thatanbsp;...

Title | : | Detection of Aberrant Response Patterns in Testing Using Cumulative Sum Control Schemes |

Author | : | Min Shi |

Publisher | : | ProQuest - 2007 |

Continue