This study examined the relationship among teacher, peer, and self-ratings of children's social behavior. The Pupil Evaluation Inventory was completed by 172 first-graders, 346 fourth-graders, 283 seventh-graders, and 30 teachers. Groups of deviant responders and controls were also selected from the total sample on the basis of peer-rated aggression and withdrawal scores. Interrater agreement was consistently greater between peer and teacher ratings than between self-ratings and either peer or teacher ratings. Discrepancies between raters were greatest for children with more deviant scores, with peer ratings providing the highest estimates of deviant behavior, and self-ratings yielding the lowest. Self ratings were lower than teacher or peer ratings on aggression and withdrawal, and higher on likability. Aggression produced greatest agreement between raters. Agreement was uninfluenced by the cognitive maturity of peer evaluators. The results suggest that the selection of raters should be influenced by the class of behaviors to be evaluated and the context in which they occur.

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In this work we use the Timepix chip as a multichannel tester for evaluation of properties of different semiconductor sensors. Different sensors bump-bonded to a Timepix readout chip and exposed to energetic protons with different incident angles and energies have been investigated. Data from each recorded proton track were processed individually. The extent of the charge sharing effect was evaluated along the proton track at different sensor depths. The level of charge sharing is affected by the time of charge collection which is related to the local intensity of the electric field in the sensor. This method can provide a 3D map of the electric field in the whole sensor volume.

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