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Table 3 Estimated numbers of required subjects for 2, 3, 4 and 5 observations with ICC = 0.4

From: Sample size determination for mediation analysis of longitudinal data

Observations
  2 3 4 5
Effect size Sobel Product Bootstrap Sobel Product Bootstrap Sobel Product Bootstrap Sobel Product Bootstrap
SS 479 394 395 363 300 334 313 269 276 282 251 253
SH 379 351 564 305 299 298 276 266 270 290 244 254
SM 376 350 351 307 301 302 269 251 253 282 238 232
SL 360 361 361 293 302 305 271 276 275 283 251 264
HS 258 215 219 181 153 159 149 120 134 137 106 111
HH 143 117 123 108 90 92 91 80 88 93 72 75
HM 116 109 111 96 88 88 85 79 81 88 72 78
HL 112 109 110 93 86 90 84 79 85 86 73 74
MS 217 210 212 152 132 141 116 105 118 100 83 85
MH 88 72 81 65 54 59 56 45 48 54 39 40
MM 64 54 55 49 45 47 42 37 38 42 35 33
ML 54 49 50 45 41 44 39 38 38 41 35 40
LS 209 198 204 143 138 140 105 96 108 85 81 87
LH 68 61 63 49 42 49 40 33 37 35 28 29
LM 41 34 36 32 25 26 25 22 21 24 19 19
LL 29 24 26 23 20 23 20 18 19 20 17 18
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