Survey refusal in the Current Population (CPS) has tripled over last decade. This rise coincides with emergence of rhetoric, largely from political right, questioning accuracy and integrity government statistics. We examine how support for Tea Party Republican party have affected CPS rates whether households are more likely to participate survey when their preferred holds White House. Using sta...

Pervasive refusal syndrome is a severe, pervasive and life-threatening disorder. Most commonly seen in girls between the ages of 8 and 15, although also affecting boys and younger age groups, it is characterised by a profound and pervasive refusal to eat, drink, talk, walk and engage in any form of self-care. A determined resistance to treatment is a striking component of the condition. The cau...

In this paper, refusal testing ideas are applied to deene a testing semantics for a probabilistic process algebra. A testing equivalence is deened by combining the greater discriminatory power of refusal testing and a simple treatment of the prob-abilistic component of processes. This testing equivalence is characterized by two fully abstract denotational semantics. The rst of them is based on ...