The occurrence of anxiety without an obvious external cause, affecting daily functioning is known as a(n) ______________ disorder.

Within the framework of the Rokeach value survey, what are instrumental values?

a. goals that individuals would like to achieve during their lifetime b. concepts or beliefs that guide how we make decisions about, and evaluations of, behaviours and events c. principles that guide behaviour and inform us whether actions are right or wrong d. fixed or predetermined policies or modes of action e. preferable ways of behaving

__________ proposed that cognitive development progresses through four stages, beginning with the sensorimotor stage and ending with formal operations

a) Barry Brazelton b) Lev Vygotsky c) Jean Piaget d) Erik Erikson