Using familiar concepts from classical measurement methods and basic statistics, Hambleton and colleagues introduce the basics of item response theory (IRT) and explain the application of IRT methods to problems in test construction, identification of potentially biased test items, test equating, and computerized-adaptive testing. The book also includes a thorough discussion of alternative proceduers for estimating IRT parameters, such as maximum likehood estimation, marginal maximum likehood estimation, and Bayesian estimation in such a way that the reader does not need a knowledge of calculus to follow these explanations.
Grade 7 Up–A group of genetically enhanced kids who can fly and have other unique talents are on the run from part-human, part-wolf predators called Erasers in this exciting SF thriller that's not wholly original but is still a compelling read. Max, 14, and her adopted family–Fang and Iggy, both 13, Nudge, 11, Gazzy, 8, and Angel, 6–were all created as experiments in a lab called the School. Jeb, a sympathetic scientist, helped them escape and, since then, they've been living on their own. The Erasers have orders to kill them so the world will never find out they exist.
Gr. 7-10. Max and her flock are back in this new volume in the Maximum Ride series, a follow-up to The Angel Experiment (2004). In a flying fight with Erasers, Fang is injured so seriously that the flock takes him to a hospital. It's obvious he's not a normal human (having wings and avian DNA), so it isn't long before the FBI shows up. Anne Walker, the lead agent, takes the flock home to her Virginia farm, where she tries to mother the kids and enrolls them in a nearby private school. Living a somewhat normal life for the first time, Max, 14, manages a date and a first kiss, and others in the flock begin the quest to find their birth parents.
Maximum Ride 3 - Saving the World and Other Extreme Sports
The end is near . . . or is it? So reads the tagline of Book 3 of the Maximum Ride series, suggesting that Patterson's best-selling series for YAs may expand beyond the trilogy originally planned—news that will be greeted enthusiastically by fans of its 14-year-old heroine. Slated for extermination by their scientist creators, rebel-mutant Max and other members of her flock, all of whom possess bird DNA and functioning wings, are on the lam again, their mission to save the world from a eugenics plot. Affection for the dauntless characters and misadventures that build on universal yearnings about sprouting wings and taking flight will hold readers.
