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. 2022 May 5;12:7387. doi: 10.1038/s41598-022-11071-5

Table 2.

Loading of items for the five-factor structure.

Items and subscale Factor Items and subscale Factor
1 2 3 4 5 1 2 3 4 5
DAS21 EXE 0.778 − 0.162 − 0.105 0.062 − 0.059 AMI15 BA − 0.424 0.115 0.481 − 0.012 0.000
MFI11 MF − 0.762 0.294 0.095 0.000 0.080 AMI10 BA − 0.110 0.154 0.480 0.038 0.037
DAS23 EXE 0.743 − 0.084 − 0.078 0.118 0.001 MFI6 RA − 0.268 0.174 0.415 − 0.041 0.262
MFI13 MF 0.733 − 0.309 − 0.049 0.040 − 0.058 MFI10 RA 0.374 − 0.258 − 0.406 0.040 − 0.229
DAS10 EXE − 0.703 0.093 0.280 0.020 0.053 DAS8 INIT − 0.193 − 0.023 0.399 0.144 − 0.044
MFI7 MF − 0.687 0.263 0.196 − 0.012 0.065 MFI15 RM − 0.089 0.304 0.380 0.018 0.286
MFI19 MF 0.600 − 0.261 − 0.012 0.118 − 0.146 DAS18 INIT − 0.258 0.146 0.290 0.002 0.240
DAS17 EXE 0.538 − 0.106 − 0.269 0.147 − 0.151 AMI18 ES 0.088 0.009 − 0.044 0.658 − 0.018
MFI17 MF 0.511 − 0.210 − 0.420 0.006 − 0.204 DAS9 EMO 0.074 − 0.064 0.088 0.658 0.008
DAS11 EXE 0.507 − 0.257 − 0.477 0.032 − 0.197 AMI13 ES 0.021 0.027 − 0.043 0.601 0.021
AMI11 BA − 0.475 0.052 0.475 0.029 − 0.064 DAS15 EMO 0.002 0.042 0.023 − 0.567 − 0.023
DAS19 EXE 0.462 − 0.106 − 0.217 0.088 − 0.142 AMI16 ES − 0.026 0.060 0.043 0.548 0.151
MFI9 RM 0.385 − 0.374 − 0.227 0.107 − 0.139 DAS24 EMO 0.052 − 0.040 − 0.033 − 0.542 − 0.160
DAS6 EXE 0.349 − 0.163 − 0.049 0.042 − 0.192 AMI1 ES 0.065 − 0.180 0.058 0.531 0.035
DAS1 EXE 0.304 − 0.138 − 0.303 0.243 − 0.166 DAS7 EMO 0.061 − 0.069 0.068 0.513 − 0.154
DAS12 EMO 0.285 − 0.042 0.024 − 0.153 − 0.255 DAS5 EMO − 0.127 0.053 0.118 0.499 0.200
MFI1 GF − 0.196 0.764 0.129 − 0.070 0.139 DAS20 EMO 0.058 − 0.076 − 0.058 0.408 0.111
MFI5 GF 0.183 − 0.724 − 0.011 0.076 − 0.061 AMI7 ES 0.226 − 0.097 0.044 0.400 − 0.129
MFI20 PF − 0.179 0.714 0.138 − 0.072 0.107 AMI6 ES 0.328 − 0.159 − 0.039 0.335 − 0.244
MFI12 GF − 0.173 0.711 − 0.034 − 0.100 0.063 DAS16 INIT 0.083 − 0.042 0.131 0.166 0.084
MFI14 PF 0.189 − 0.698 − 0.122 0.039 − 0.117 AMI14 SM − 0.215 0.097 0.050 0.014 0.720
MFI2 PF 0.217 − 0.585 − 0.183 0.013 − 0.128 AMI2 SM − 0.206 0.097 0.033 − 0.035 0.676
MFI3 RA − 0.227 0.545 0.301 − 0.022 0.232 DAS22 INIT − 0.061 0.012 0.133 0.014 0.554
MFI16 GF 0.279 − 0.519 − 0.115 0.203 − 0.164 AMI3 SM − 0.053 0.239 0.010 0.061 0.479
MFI8 PF − 0.187 0.514 0.271 − 0.065 0.192 AMI4 SM − 0.116 0.240 0.184 0.078 0.454
MFI18 RM 0.289 − 0.471 − 0.297 − 0.036 − 0.250 DAS14 INIT 0.021 0.239 0.378 − 0.046 0.436
MFI4 RM − 0.119 0.414 0.258 0.034 0.250 DAS3 EMO − 0.072 − 0.028 0.033 0.259 0.404
DAS13 INIT − 0.176 0.094 0.572 0.072 0.141 DAS2 INIT − 0.091 0.096 0.156 0.074 0.403
AMI12 BA − 0.450 0.125 0.516 − 0.021 0.087 AMI5 BA − 0.330 0.172 0.271 − 0.282 0.367
AMI9 BAB − 0.461 0.212 0.494 − 0.018 0.150 AMI8 SM 0.001 0.165 0.055 0.076 0.315
DAS4 INIT 0.066 0.142 0.488 0.182 0.265 AMI17 ES 0.006 0.113 0.184 0.041 0.201

The item loadings included into the factor are written in bold.

AMI apathy motivation index, BA behavioral activation, ES emotional sensitivity, SM social motivation, DAS dimensional apathy scale, EXE executive, INIT initiation, EMO emotional, MFI multidimensional fatigue inventory, GF general fatigue, PF physical fatigue, MF mental fatigue, RA reduced activity, RM reduced motivation.