tˈuː ɐpˈæɹənt ɛkspˌɛɹɪmˈɛntəl mˈɛθədz ʌv ɪŋkɹˈiːsɪŋ ˈɛf ɑːɹ ɪŋkɹˈiːsɪŋ ðə sˈæmpəl sˈaɪz ænd ɹᵻdˈuːsɪŋ ðɪ ˈɛɹɚ vˈɛɹiəns baɪ tˈaɪt ɛkspˌɛɹɪmˈɛntəl kəntɹˈoʊlz.
Two apparent experimental methods of increasing F are increasing the sample size and reducing the error variance by tight experimental controls.