Involvement Load Hypothesis

A long-standing debate among the vocabulary researchers is the depth of processing to learn vocabulary. This paper is a quantitative research which considers a revision in the “involvement load hypothesis” proposed by Laufer and Hulstijn in 2001. It investigates the role of proficiency and evaluation in this hypothesis in order to better reveal its potential contribution to vocabulary learning. It was based on task-induced involvementthat comparesdifferent tasks in incidental vocabulary acquisition in EFL context. The participants were 66 learners fromtwo different English institutes who were classified into two major high and low proficient groups based on Nelson Proficiency Test. The participants in each group were randomly assigned to three tasks prepared to compare“moderate”, “strong”, and “no evaluation” in involvement load hypothesis.The “strong evaluation”subgroup (making original sentences) in low proficiency supported Laufer and Hulstijn’s hypothesis and yielded better retention of the target words. The study suggests that the level of proficiency and evaluation in task induced involvementneeds reconsideration. The results have implications for language teachers, materials developers, and syllabus designers.

Involvement Load Hypothesis (ILH) and Technique Feature Analysis (TFA) are two frameworks which operationalize depth of processing of a vocabulary learning task. However, there is dearth of research comparing the predictive power of the ILH and the TFA across second language (L2) vocabulary learning tasks. The present study, therefore, aimed to examine this issue across four vocabulary learning tasks (i.e., reading with glosses, keyword techniques, word card, and reading and finding the words in text) ranked differently by the ILH and the TFA. To this end, 80 English as a foreign language (EFL) learners were randomly assigned to one of four tasks of learning 16 target words. The results of one-way ANOVA, LSD Post hoc tests, and multiple regression analyses showed that the TFA had a better explanatory power than the ILH in predicting vocabulary learning gains. The findings highlight the TFA as a more powerful framework.

The present study examined the effect of four types of post reading-based tasks with different index of task-induced involvement load (Laufer & Hulstijn, 2001) on EFL learners’ recognition and recall of unfamiliar L2 vocabularies. To this end, 88 intermediate EFL learners were randomly assigned to four groups and were instructed to employ four different tasks after reading two narrative texts: (1) simple sentence writing; (2) text summary writing; (3) creative sentence writing; and (4) imaginary story writing. A day after the output activity session, the participants took two post-tests: the production test and the recognition test. Three weeks later, the delayed post-tests were administered. Mixed ANOVA (Split-plot) was run to compare the performances of the groups on immediate and delayed post-tests. The results revealed that there were overall significant within-group and between-group differences among four groups of the study both in immediate and delayed posttests. The creative sentence writing group outperformed in comparison to the other three groups. The results of this study turned out to be partially consistent with involvement load hypothesis.

The present study explored the effects of three forms of reading-based L2 vocabulary tasks on learning and retention of 40 target words by Iranian intermediate and advanced male English as a Foreign Language (EFL) learners. To this end, 176 EFL learners were randomly selected and assigned to three experimental and one control condition across two levels of intermediate and advanced proficiency levels. The participants in the experimental conditions read 8 texts including 40 target words and performed word-focused (WF) tasks, oral reproduction (OR) plus summary writing (SW) tasks, and WF plus OR vocabulary tasks incorporating target words according to their task designation. The results of two-way MANOVA and Scheffe’s post-hoc test demonstrated that while all three experimental conditions significantly outperformed the control group in terms of learning and retention of target words, the WF plus OR task was found to be the most effective condition. The results are justified in light of Laufer and Hulstjin’s (2001) Involvement Load Hypothesis, Nation and Webb’s (2011) Technique Feature Analysis, the Skill Acquisition Theory, and Swain’s (1985) Output Hypothesis. The study concluded with pedagogical implications for language teachers and materials developers with regard to including both word-focused and meaning-oriented L2 vocabulary tasks in language classes and language textbooks.

This study aimed to investigate the effect of task type (i.e., sentence fill-in/sentence writing) and word type (i.e., real/ pseudo) on initial learning and retention of 10 word meanings, taking the predictions of Involvement Load Hypothesis (ILH) and Technique Feature Analysis (TFA) into account. Participants were 59 intermediate-level EFL learners from eight intact classes. Each intact class was randomly assigned to one of the four learning conditions: 1) sentence fill-in with real words, 2) sentence writing with real words, 3) sentence fill-in with pseudowords, and 4) sentence writing with pseudowords. Initial learning was measured by administering a meaning recall test immediately after the tasks and medium-term retention was measured by administering the same test with rearranged items one week after the tasks phase. The results of a mixed between-within subjects ANOVA did not show any significant interaction effect between test time and learning condition. Furthermore, the main effect for learning condition was not statistically significant but there was a significant main effect for test time, suggesting that participants’ scores dropped significantly from the immediate posttest to the delayed posttest. The findings of two independent-samples t-tests failed to show any significant difference between the immediate and delayed posttest scores of the participants who received either sentence fill-in or sentence writing tasks. However, some tentative findings demonstrated that those participants who were assigned to the sentence writing task achieved higher scores on the posttests. This finding indicates that TFA has probably more predictive power than ILH and it also provides some evidence in favor of the heavier weight of the evaluation component of the ILH when compared to its search component.

This study investigated the interplay of working memory capacity and language proficiency in the context of vocabulary acquisition through word-focused tasks. The involvement load hypothesis served as a theoretical framework, positing that the degree of cognitive engagement influences lexical learning outcomes. A total of 100 EFL learners participated in this study. They were divided into distinct groups based on varying levels of working memory capacity, language proficiency, and aspects of working memory (phonological short-term memory and executive working memory). The participants engaged in receptive and productive vocabulary tasks under different experimental conditions, including reading-only, reading plus blank-fill, and reading-plus production. The results revealed intricate relationships between working memory capacity, language proficiency, and vocabulary acquisition. While the efficacy of the hypothesis varied across conditions, its predictions were influenced by the nuances of individual cognitive capabilities and language competence. Learners with higher proficiency levels acquired more lexical items, both receptively and productively.  Although the difference with the phonological short-term memory was not significant, executive working memory was more facilitative of lexical gain. Additionally, the role of input modality in shaping vocabulary learning outcomes was highlighted. That is, reading plus production and blank-fill tasks resulted in more lexical gain than reading-only tasks.  The study contributes to the theoretical understanding of vocabulary acquisition by underscoring the complex interplay of cognitive processes and language factors. These insights hold implications for foreign language pedagogy, guiding educators in crafting more effective interventions for enhancing both receptive and productive lexical knowledge.