“…State anxiety refers to a transitory emotional condition of feeling tense, nervous, and worried as well as reporting symptoms of increased physiological arousal at a particular moment in time (Wetherell, Reynolds, Gatz, & Pedersen, 2002). Conceptually, state anxiety can be expected to vary in intensity and fluctuate over time (Cattell & Nesselroade, 1976) primarily because it represents a systematic response to a given situation or to events in everyday life (Lawton, deVoe, & Parmelee, 1995; see also Mroczek & Almeida, 2004; Shoda, Mischel, & Wright, 1994), but maybe also because of random variation around a more or less stable level (for discussion, see Nesselroade, 1988). Given this transitory nature of states, and in line with seminal personality theories stressing the variability of behavior and feelings over time (Mischel & Shoda, 1995; Spielberger et al, 1983; Wessman & Ricks, 1966), states are usually studied in terms of both level and short-term fluctuations.…”