highly significantp < 0.0001
However, the overall increasing trend through time was highly significant ( t = 8.45, df = 471, p < 0.0001) with an effect size of 0.0024 developmental units per year.
However, the overall increasing trend through time was highly significant ( t = 8.45, df = 471, p < 0.0001) with an effect size of 0.0024 developmental units per year.