This article responds to MacIntyre's (1995) critique of the Linguistic Coding Differences Hypothesis (LCDH), which posits that language aptitude is the primary source of individual differences in foreign language (FL) achievement. It defends the LCDH and suggests that difficulties exist with theories that attribute affective and social context…

This article responds to Sparks and Ganschow's (1995) defense of their Linguistic Coding Differences Hypothesis (LCDH), arguing that the LCDH ignores the context in which language learning occurs. It asserts that LCDH is so focused on the learning of the sound system of language that it ignores affective variables. (22 references) (MDM)

Review research on foreign language aptitude and its measurement prior to 1990. Describes research areas in the 1990s, including affective variables, language learning strategies, learning styles as contributors to aptitude and aptitude as a cognitive construct affected by language variables. Reviews research on individual differences and the…

Investigates numerous individual difference measures to determine their underlying dimensions, to contrast their predictive validities and to evaluate their contributions in a causal model of second language acquisition. Findings indicate that substantial links exist among affective measures and achievement. (56 references) (Author/CK)