Table 1.
Analysis of birth dates distribution by quarter of Polish youth basketball players between 2013 and 2016.
Q1 (%)
Q2 (%)
Q3 (%)
Q4 (%)
TOTAL
χ²
3
p
V
Effect
♀
U 14
430 (35.02)
319 (25.98)
304 (24.75)
175 (14.25)
1228
56.92
<.0001
.15
small
U 16
318 (34.49)
269 (29.18)
207 (22.45)
128 (13.88)
922
47.55
<.0001
.16
medium
U 18
268 (29.78)
270 (30.00)
213 (23.67)
149 (16.55)
900
23.61
<.0001
.11
small
U 22
107 (29.00)
113 (30.62)
82 (22.22)
67 (18.16)
369
7.81
<.05
.10
small
♂
U 14
468 (38.27)
361 (29.52)
247 (20.19)
147 (12.02)
1223
101.26
<.0001
.20
medium
U 16
388 (41.86)
271 (29.23)
179 (19.31)
89 (9.60)
927
112.98
<.0001
.25
medium
U 18
341 (37.60)
276 (30.43)
178 (19.62)
112 (12.35)
907
72.70
<.0001
.20
medium
U 20
277 (34.98)
213 (26.89)
171 (21.59)
131 (16.54)
792
29.31
<.0001
.14
medium
χ²
3
– chi-squared test value; p – probability value; V – Cramer`s V value