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Table 3 Mean working memory (WM) capacity as estimated using Pashler’s K (SD)

From: Transdiagnostic comparison of visual working memory capacity in bipolar disorder and schizophrenia

  WM Capacity mean (SD) Group comparisons
Effect size (p-value)
   HC PBD BP-I BP-II BP HPS +  BP HPS- PSZ SZ SZAFF
HC 3.39
(0.61)
0.202 (0.020)* 0.167
(0.082)
0.214 (0.038)* 0.216 (0.029)* 0.156
(0.120)
0.370 (< 0.001)* 0.340 (< 0.001)* 0.347 (< 0.001)*
PBD 3.15
(0.75)
0.202 (0.020)* 0.201 (0.024)*
BP-I 3.22
(0.62)
0.167
(0.082)
0.104
(0.414)
0.211
(0.061)
0.290 (0.025)*
BP-II 3.03
(0.92)
0.214 (0.038)* 0.104
(0.414)
0.105
(0.395)
0.180
(0.217)
BP HPS +  3.19
(0.56)
0.216 (0.029)* 0.038
(0.767)
0.169
(0.148)
0.262
(0.052)
BP HPS- 3.10
(0.92)
0.156
(0.120)
0.038
(0.767)
  0.171
(0.150)
0.233
(0.090)
PSZ 2.90
(0.77)
0.370 (< 0.001)* 0.201 (0.024)*
SZ 2.89
(0.81)
0.340 (< 0.001)* 0.211
(0.061)
0.105
(0.395)
0.169
(0.148)
0.171
(0.150)
-0.047
(0.705)
SZAFF 2.90
(0.70)
0.347 (< 0.001)* 0.290 (0.025)* 0.180
(0.217)
0.262
(0.052)
0.233
(0.090)
-0.047
(0.705)
  1. Results of Mann–Whitney U tests to test pairwise comparisons of working memory capacity estimated with Pashler’s K and reported as effect size (r = z / √N) and p-value. HC = healthy controls, PBD = patients with bipolar disorder, BP-I = patients with bipolar type I, BP-II = bipolar patients with bipolar type II, BP HPS +  = bipolar patients with history of psychotic symptoms, BP HPS- = bipolar patients without history of psychotic symptoms, PSZ = patients with schizophrenia, SZ = patients with schizophrenia, SZAFF = patients with schizoaffective disorder. Statistical significance is indicated by *