Question $12$

$2pts$

Texas State is interested in the impact of different library layouts on students' happiness while studying in the library. The librarians test layout A versus layout B using an independent samples design and find that students are significantly happier as a result of layout B with an effect size of $d=0\mathrm{.}25.$ The librarians also test layout A versus layout $C$ using an independent samples design and find that students are significantly happier as a result of layout $C$ with an effect size of $d=1\mathrm{.}39.$ Based on these results, which layout should the librarians choose to make students the happiest?

None of the layouts made students happy

Layout B

Layout C

Layout A

Either layout B or C