It is clearly observed from Table 1 that the advanced group’s average mean value on lexical inferencing test is higher than that of the intermediate group. To examine whether the difference was significant, Leven’s test for equality of variances was applied. Table 2 demonstrates that the higher gains of advanced participants on lexical inferencing test Ara manning)! As can be seen, the Leven’s Test conducted indicates that the equality of variances for the two groups cannot be assumed, which means the two groups’ performance on the lexical inferencing test is by no means equal. Alternatively, to determine the correlation between familiar and unfamiliar passage sight vocabulary items for the intermediate group, Spearman correlation was utilized. Tables 3 and 4 depict the magnitudes of the relationship between topic familiarity/unfamiliarity and lexical inferencing respectively. Table2. Results of the independent samples test Table 5 illustrates the results of applying Spearman for measuring the correlation between passage sight vocabulary and lexical inferencing variables, when unfamiliar topics are used. As can be seen, the correlation coefficient is equal to 0.87 reflecting that there exists a positive relationship between passage sight vocabulary and _ lexical inferencing for the advanced group learners. The same statistical procedure was used for the advanced group. The results of the correlations between passage sight vocabulary and lexical inferencing scores for both familiar and unfamiliar topics are indicated in Tables 5 and 6 respectively. According to Table 7, intermediate group’s recall of familiar passages regarding the mean and standard deviation values (M=10.66, SD=1.21) is more significant than their recall of unfamiliar passages (M=6.61, SD=1.85). Furthermore, the results obtained by the Leven’s Test substantiate that learners’ familiarity with topic of a text has a considerable impact on their lexical inferencing for the intermediate group at 0.05 confidence interval (Table B). Table 10. Results of the independent samples test According to Table 9, advanced participants’ recall of familiar passages with regard to the mean and standard deviation values (M=12.80, SD=1.21) is higher than their recall of unfamiliar passages (M=9.00, SD=1.41). Once again, the results produced by the Leven’s Test show that learners’ familiarity with topic of the text positively influences lexical recall at 95% confidence level for the advanced group (Table 10). Finally, to compare the intermediate and advanced groups with regard to their ability in recalling target words, the scores on the recall test were statistically analyzed. The data from Tables 11 and 12 show there is a meaningful difference between the two groups. Table 12. Results of the independent samples test Clearly, the advanced participants more successfully recalled target words compared with the intermediate group.
