Measurement scales validation and discriminant validity (study 1/study 2)
| Trust | Corporate credibility – expertise | Attitude towards the firm | Purchase intention | Co-variant model | |
|---|---|---|---|---|---|
| Average (standard deviation) | 5.38(1.02)/4.04(1.72) | 5.28(1.22)/4.92(1.38) | 5.66(1.06)/4.11(1.85) | −/4.13(1.86) | – |
| CFI | 0.979/0.992 | 1.000/1.000 | 0.979/1.000 | −/1.000 | 0.969/0.988 |
| NFI | 0.969/0.988 | 1.000/1.000 | 0.972/0.998 | −/1.000 | 0.936/0.970 |
| IFI | 0.980/0.992 | 1.000/1.000 | 0.980/1.000 | −/1.002 | 0.969/0.988 |
| SRMR | 0.0183/0.0069 | 0.0000/0.0000 | 0.0203/0.0027 | −/0.0003 | 0.0384/0.0145 |
| χ2(p-value) | 26.027(0.002)/27.300(0.001) | 0.000(n.c.)/.000(n.c.) | 18.985(0.002)/4.141(0.529) | −/0.020(0.990) | 139.295(0.000)/216.726(0.000) |
| χ2/DF | 2.892/3.033 | n.c./n.c | 3.797/0.828 | −/0.010 | 1.882/1.680 |
| Individual-shared variances matrix | |||||
| Trust | |||||
| Corporate credibility – expertise | 0.816/0.906 | 0.484/0.610 | 0.605/0.870 | −/0.716 | |
| Attitude towards the firm | 0.843/0.853 | 0.430/0.534 | −/0.464 | ||
| Purchase intention | 0.822/0.921 | −/0.731 | |||
| −/0.907 | |||||
| Correlations matrix | |||||
| Trust | 1.000/1.000 | 0.696/0.781 | 0.778/0.933 | −/0.846 | |
| Corporate credibility – expertise | <0.001/<0.001 | 1.000/1.000 | 0.656/0.731 | −/0.681 | |
| Attitude towards the firm | <0.001/<0.001 | <0.001/<0.001 | 1.000/1.000 | −/0.855 | |
| Purchase intention | −/<0.001 | −/<0.001 | −/<0.001 | −/1.000 | |
| Heterotrait-monotrait ratio of correlations (HTMT) | |||||
| Corporate credibility – expertise | 0.727/0.810 | ||||
| Attitude towards the firm | 0.809/0.949 | 0.695/0.757 | |||
| Purchase intention | −/0.862 | −/0.708 | −/0.872 | ||
| Trust | Corporate credibility – expertise | Attitude towards the firm | Purchase intention | Co-variant model | |
|---|---|---|---|---|---|
| Average (standard deviation) | 5.38(1.02)/4.04(1.72) | 5.28(1.22)/4.92(1.38) | 5.66(1.06)/4.11(1.85) | −/4.13(1.86) | – |
| CFI | 0.979/0.992 | 1.000/1.000 | 0.979/1.000 | −/1.000 | 0.969/0.988 |
| NFI | 0.969/0.988 | 1.000/1.000 | 0.972/0.998 | −/1.000 | 0.936/0.970 |
| IFI | 0.980/0.992 | 1.000/1.000 | 0.980/1.000 | −/1.002 | 0.969/0.988 |
| SRMR | 0.0183/0.0069 | 0.0000/0.0000 | 0.0203/0.0027 | −/0.0003 | 0.0384/0.0145 |
| 26.027(0.002)/27.300(0.001) | 0.000(n.c.)/.000(n.c.) | 18.985(0.002)/4.141(0.529) | −/0.020(0.990) | 139.295(0.000)/216.726(0.000) | |
| 2.892/3.033 | n.c./n.c | 3.797/0.828 | −/0.010 | 1.882/1.680 | |
| Trust | |||||
| Corporate credibility – expertise | 0.484/0.610 | 0.605/0.870 | −/0.716 | ||
| Attitude towards the firm | 0.430/0.534 | −/0.464 | |||
| Purchase intention | −/0.731 | ||||
| − | |||||
| Trust | 1.000/1.000 | 0.696/0.781 | 0.778/0.933 | −/0.846 | |
| Corporate credibility – expertise | <0.001/<0.001 | 1.000/1.000 | 0.656/0.731 | −/0.681 | |
| Attitude towards the firm | <0.001/<0.001 | <0.001/<0.001 | 1.000/1.000 | −/0.855 | |
| Purchase intention | −/<0.001 | −/<0.001 | −/<0.001 | −/1.000 | |
| Corporate credibility – expertise | 0.727/0.810 | ||||
| Attitude towards the firm | 0.809/0.949 | 0.695/0.757 | |||
| Purchase intention | −/0.862 | −/0.708 | −/0.872 | ||
Note(s): For the individual-shared variances matrix, numbers in italic relate to scales' individual AVE, while numbers above represent squared correlations of each pair of instruments; for the correlations matrix, numbers above the diagonal relate to instruments' correlations and numbers below the diagonal line relate correlations' significance values
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