29 March 2022>: Clinical Research
Cognitive and Socioemotional Development at 5 and 9 Years of Age of Children Born with Very Low Birth Weight and Extremely Low Birth Weight in the Czech Republic
Lucie Švandová 1BDEF , Radek Ptáček 1ABDG* , Martina Vňuková 1BCDE , Hana Ptáčková 1BF , Martin Anders 1E , Petr Bob 1E , Simon Weissenberger 1E , Daniela Marková 2AG , Ivan Sebalo 34CD , Jiří Raboch 1EG , Michal Goetz 5ABDEDOI: 10.12659/MSM.935784
Med Sci Monit 2022; 28:e935784
Table 5 Post hoc power analysis of subscales of Intelligence and Development Scales (IDS).A post-hoc power analysis of overall cognitive development revealed a high statistical power (0.99).
Input: Effect size f(V) | 0.29 | Output: Noncentrality parameter λ | 64.16 |
α err prob | 0.01 | Critical F | 2.59 |
Total sample size | 219 | Numerator df | 8 |
Number of groups | 2 | Denominator df | 210 |
Response variables | 8 | β | 0.99 |
Pillai V | 0.05 | ||
η ((8×7.73)/(8×7.73+210)=0.22)) was used to calculate the effect size, i.e., f(V)=0.22/(1–0.22)=0.29. |