“…Numerous recent experiments have provided empirical support for the effect in both human (e.g., Block, 1982;Godden & Baddeley, 1975;Hintzman, Block, & Summers, 1973;Smith, 1979Smith, , 1982Smith, Glenberg, & Bjork, 1978) and animal (e.g., lobe, Mellgren, Feinberg, Littlejohn, & Rigby, 1977) research. However, the superiority of same-context testing has not been found across all experimental paradigms (e.g., recall vs. recognition) or instructional sets (see Block, 1982;Nixon & Kanak, 1981;Smith et al, 1978), indicating that the underlying mechanism or mechanisms governing contextual associations have specifiable boundaries of sensitivity. Most attempts to explain the context effect have been more descriptive than explanatory, and some appear incapable of accounting for all of the available empirical data, especially those explanations that specify a strong "strategy" interpretation.…”