MR. STEVENS' book is divided into two parts, the first only requiring a knowledge of Euclid's first book, and the use of algebraic symbols, in order to understand it; while the second part ...

NEW YORK—As the TV industry grapples with the measurement problems that have been produced by rapid changes in the way people watch programming, the Coalition for Innovative Media Measurement (CIMM) ...

Biosensors do not eliminate Type I and Type II errors, but provide continuous, objective data that complements self-report ...