an invalid form. Although the argument “This has an invalid argument-form; therefore, this is invalid ” is not itself a deductively valid argument, we do not need to conclude that it is not a good argument.

bases of adult basic education; (3) \ basic reading skills; (4) comprehension; (5)!measurement of reading performance; (6) organizing for individuai differences: methods and \materials; (7) evaluation; and (8) materials. (For relatqd document, `see AC 012859.) (cluthor/KM).._,!1

behavior checldist which functioned as a screening device; a 124-item behavior rating scale which provided frequency measures on indices of the teacher's reaction and response to exhibited behaviors; and a behavioral observation form which recorded task-oriented behavior in 10-second intervals for 10-minute periods. The checklist had a split-half reliability of.98 and discriminated between disturbed and non-disturbed children (p=.001). The rating scale reflected treatment differences which were known to exist (p=.01), and had an average inter-rater reliability of.935 for three judges on the behavior of six subjects. Agreement measures between independent observers using the oLervation form were.90 and above. A treatment model based upon learning theory was developed to modify the behavior of disturbed children in an educational setting. Various response-reinforcement contingencies and reinforcers were used with 11 disturbed boys in grades 4, 5, and 6 and produced measurable change by reducing deviant behavior and increasing time spent engaged in task-orientated behavior. It was not possible to determine which treatment variables produced a given amount of behavior change. The checklist, rating scale, and a

.Th Objective-Item Dank presented covers 16 sectionspf four subject ar as:in each of four grade levels. The four areas

stars or guiding lights? Learning from disasters to improve patient safety

Abstract not found

Face recognition has made significant advances over the last twenty years. State-of-the-art algorithms push the performance envelope to near perfect recognition rates on many face databases. Recently, the Good, the Bad, and the Ugly (GBU) face challenge problem has been introduced to focus on hard

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reported: what competency based content is; who has interest in it; the general, professional, and technical components; examples of content implementation; examples of implementation of competency based content; and future directions or nwhere do we gc from here?tt (CS)

and composability; (2) the configuration interface is now OTcl, an object oriented version of Tcl; and (3) the interface code to the OTcl interpreter is separate from the main simulator. Ns documentation is available in html, Postscript, and PDF formats. See