Web 2.0 tools in Turkish insrtuction of foreigners to improve vocabulary: Kahoot! example

This study was conducted to determine the effect of Turkish application called Kahoot! on the vocabulary of foreigners who are learning Turkish. In this research, mixed method is applied. For the quantitative data of the research, a semi-experimental model including a pre-test-final test control group is applied. In this respect, for the qualitative data of a research, side structured individual interview is applied. The study group consisted of B1 and B2 class students studying at TÖMER in Akdeniz University during 2018-2019 academic year. The experimental group consisted of 9 girls, 7 boys and the control group consisted of 7 girls and 8 boys. "Normality Test, Wilcoxon Signed Rank Test and Mann Whitney U-Test" were used to analyze the data obtained from the study. The analysis of the quantitative data was fulfilled by SPSS 21.0 program. The average pre-test achievement score of the students in the experimental group was 36.50, and the final test success score was 39.50. The average pre-test achievement score of the students in the control group was 38.20, the average of the post-test success score was 41.60. At the end of the study, the Kahoot! application was observed to have a positive impact on vocabulary and its development in respect of learning outcome level. Since this development was not in a sufficient level, the difference between the group averages was not found out to be statistically significant. As a result, Kahoot! application was ascertained as ineffective in increasing vocabulary scores. Key Words: Turkish as a foreign language, vocabulary, Kahoot!