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H6). It involves performing a multi-group analysis with each sub-sample of the moderating<br />

variables (gender and shopping orientation). Two models are compared: one model in which the<br />

parameters are allowed to vary freely across groups (general model) and another model in which<br />

parameters are constrained to be equal across groups (restricted model). If there is a significant<br />

difference between the groups, the general model should fit better (χ²) than the restricted model. It is<br />

necessary to calculate the difference between the χ² of the general model and the χ² of the restricted<br />

model (dχ²). A significant dχ² suggest that the relationships are different between the groups and is<br />

consistent with moderation.<br />

Research results<br />

Confirmatory factor analysis (CFA) was conducted on all measures: online shopping <strong>value</strong>s<br />

and consumer <strong>satisfaction</strong> with the electronic catalog visit. Two items had high modification indices<br />

and were dropped from the analysis. Another CFA was conducted. Fit indices are correct for each<br />

scenario: χ²=42.4. RMSEA=0.049, RMR=0.078, GFI=0.972, AGFI=0.947, TLI=0.985, CFI=0.990<br />

for the “shopping as recreation” scenario and χ²=38.5, RMSEA=0.043, RMR=0.109, GFI=0.974,<br />

AGFI=0.950, TLI=0.988, CFI=0.992 for the “shopping as work” scenario. Correlations between<br />

constructs were examined to test discriminant validity. Some variables such as <strong>satisfaction</strong> and<br />

online shopping hedonic <strong>value</strong> are highly correlated in the “shopping as recreation” condition (see<br />

table 1).<br />

Table 1 – Correlation between variables in the “shopping as recreation” scenario<br />

Satisfaction Hedonic <strong>value</strong> Utilitarian <strong>value</strong><br />

Satisfaction 1 0.828 0.660<br />

Hedonic <strong>value</strong> 0.828 1 0.454<br />

Utilitarian <strong>value</strong> 0.660 0.454 1<br />

66

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