Abstract: A method and system for assembling a test having a plurality of slots is disclosed. The method includes executing a test administration script to associate each of the plurality of slots of the test with an item collection from which an item to fill the slot is to be chosen and to determine a lookup table of optimization statistics and a degree of randomization to use in selecting items from the item collection. An interim test score is obtained based on a portion of the test previously assembled. Optimization statistics are applied to control a property of the test based on the interim score while taking into account the degree of randomization.

Abstract: A flexible microphone and amplification system is disclosed. The system includes a first end supporting a first device and a second end supporting a second device. A flexible portion connects the first end to the second end. The flexible portion is bendable and twistable and can be contorted into various shapes to support the first end and second end in various positions.

Abstract: Aspects and embodiments of the present invention are generally directed to sound-amplifying holders for portable electronic devices. In one example, there is provided a mobile portable electronic device holder comprising a body, a retention area defined on the body and configured to releasably retain a portable electronic device, and a waveguide formed within the body and configured to amplify sound emitted from a speaker of the portable electronic device.

Abstract: A system and method for wirelessly triggering an amplification system are disclosed. In one example, the system for wirelessly triggering the amplification comprises at least one wireless tag, the at least one wireless tag having unique identification (ID) information and an amplification system configured to receive audio signals. Further, the amplification system comprises a wireless reader configured to receive and determine the ID information from the at least one wireless tag, and a processor configured to associate at least one sound effect with the ID information received from the at least one wireless tag and to modify the audio signals to include the at least one sound effect.

Abstract: Temperature control valve apparatus for preventing back flow from a cold water line into a hot water line includes a housing having an inlet or connection to a hot water line, an outlet for a connection to a cold water line and an interconnecting bore with a valve seat. A removable valve plug is disposed in the bore proximate the valve seat and a valve spring biases the valve plug in a spaced apart relationship with the valve seat for enabling water to flow therepast and through the housing from the hot water line to the cold water line. A thermal actuator disposed in an operative position for moving the valve plug to a seating position against the valve plug is provided to prevent water flow therepast from the cold water line to the hot water line.