Table 4.
Measurement Items | Observations | Item-Test Correlation | Item-Rest Correlation | Average Inter-Item Correlation | Cronbach Alpha |
---|---|---|---|---|---|
AT1 | 24 | 0.2520 | 0.4809 | 0.0351 | 0.8081 |
AT2 | 24 | 0.3014 | 0.0067 | 0.0431 | 0.8441 |
AT3 | 24 | 0.4815 | 0.1911 | 0.0402 | 0.8305 |
AT4 | 24 | 0.5102 | 0.1173 | 0.0494 | 0.8360 |
ITU1 | 24 | 0.6879 | 0.5205 | 0.0303 | 0.8050 |
ITU2 | 24 | 0.4606 | 0.2741 | 0.0394 | 0.8242 |
ITU3 | 24 | 0.5314 | 0.2433 | 0.0938 | 0.8266 |
ITU4 | 24 | 0.2702 | 0.0763 | 0.0143 | 0.8390 |
PDU1 | 24 | 0.3653 | 0.0714 | 0.0452 | 0.8394 |
PDU2 | 24 | 0.2956 | 0.0009 | 0.0436 | 0.8445 |
PDU3 | 24 | 0.0394 | 0.1474 | 0.0455 | 0.8338 |
UAL1 | 24 | 0.5501 | −0.0446 | 0.0494 | 0.8478 |
UAL2 | 24 | 0.0147 | 0.2258 | 0.0353 | 0.8279 |
EU1 | 24 | 0.1644 | 0.2782 | 0.0395 | 0.8239 |
EU2 | 24 | 0.2261 | 0.3439 | 0.0313 | 0.8189 |
EU3 | 24 | 0.3280 | 0.3460 | 0.0313 | 0.8187 |
EU4 | 24 | 0.1534 | 0.1618 | 0.0432 | 0.8327 |
EU5 | 24 | 0.3241 | 0.3418 | 0.0312 | 0.8190 |
EU6 | 24 | 0.4337 | 0.1415 | 0.0463 | 0.8342 |
EU7 | 24 | 0.5384 | 0.0441 | 0.0484 | 0.8414 |
SUS1 | 24 | 0.4184 | 0.1258 | 0.0485 | 0.8354 |
SUS2 | 24 | 0.3973 | 0.0026 | 0.0432 | 0.8444 |
SUS3 | 24 | 0.4179 | 0.2291 | 0.0393 | 0.8276 |
SUS4 | 24 | 0.0104 | 0.0158 | 0.0421 | 0.8434 |
SUS5 | 24 | 0.3324 | −0.0623 | 0.0432 | 0.8491 |
SUS6 | 24 | 0.3636 | 0.0697 | 0.0413 | 0.8395 |
SUS7 | 24 | 0.4689 | −0.0259 | 0.0422 | 0.8464 |