ANOVA is used in the analysis of comparative experiments, those in which only the difference in outcomes is of interest.
ænˈoʊvə ɪz jˈuːzd ɪnðɪ ɐnˈæləsˌɪs ʌv kəmpˈæɹətˌɪv ɛkspˈɛɹɪmənts, ðoʊz ɪnwˌɪtʃ ˈoʊnli ðə dˈɪfɹəns ɪn ˈaʊtkʌmz ɪz ʌv ˈɪntɹɛst.