Is it easier to use one language variety at a time, or mix them? An investigation of voluntary language switching with bidialectals

Novel approach to delivering pro-environmental messages significantly shifts norms and motivation, but children are not more effective spokespeople than adults

youth norms vs adult norms mixed model ancova
cell sizes vary slightly between analysis

N=377,<italic toggle="yes">p<.001,<italic toggle="yes">Cohen's d=1 .<italic toggle="yes">02
who didn't(N=378),<italic toggle="yes">p<.001,<italic toggle="yes">Cohen's d=1.09
from Time 1 Time 2 (<italic toggle="yes">Mchange=1.99,<italic toggle="yes">SD=8.22,<italic toggle="yes">F (1, 430)=33.32,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.07
toggle="yes">F (1, 726)=23.09,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.03
toggle="yes">F (1, 817)=17.94,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.02
yes">F (1,<italic toggle="yes">723)=28.18,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.04
yes">F (1, 724)=30.52,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.04
yes">F (1, 498)=11.50,<italic toggle="yes">p=.001,<italic toggle="yes">eta2(p)=.02
toggle="yes">M=3.38,<italic toggle="yes">SE=.05,<italic toggle="yes">F (1, 415)=35.90,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.080
yes">F (1,<italic toggle="yes">415)=12.19,<italic toggle="yes">p=.001,<italic toggle="yes">eta2(p)=.029
toggle="yes">M=3.33,<italic toggle="yes">SE=.06),<italic toggle="yes">F (1, 415)=12.39,<italic toggle="yes">p<.001,<italic toggle="yes">eta2(p)=.029
yes">F (1, 415)=3.21,<italic toggle="yes">p=.07,<italic toggle="yes">eta2(p)=.01
yes">M=4.08,<italic toggle="yes">SE=.05,<italic toggle="yes">F (1, 207)=3.49,<italic toggle="yes">p=.06,<italic toggle="yes">eta2(p)=.02
yes">M=4.05,<italic toggle="yes">SE=.05,<italic toggle="yes">F (1, 207)=3.70,<italic toggle="yes">p=.06,<italic toggle="yes">eta2(p)=.02
yes">M=3.01,<italic toggle="yes">SE=.066,<italic toggle="yes">F (1, 206)=2.90,<italic toggle="yes">p=.090,<italic toggle="yes">eta2(p)=.01
yes">M=2.89,<italic toggle="yes">SE=.11,<italic toggle="yes">F (1, 205)=7.18,<italic toggle="yes">p=.008,<italic toggle="yes">eta2(p)=.03
N=185,<italic toggle="yes">M=2.90,<italic toggle="yes">SD=1.32,<italic toggle="yes">t(391)=9.85,<italic toggle="yes">p<.001,<italic toggle="yes">Cohen's d=1.16
toggle="yes">M=3.47,<italic toggle="yes">SE=0.05,<italic toggle="yes">F (1, 368)=10.83,<italic toggle="yes">p=.001