Research Article
Cognitive Load in eCommerce Applications—Measurement and Effects on User Satisfaction
Table 2
Means and (Standard Deviations) for the six major outcome measures for each of the four shops.
| | amazon.ch | buch.ch | books.ch | buchhaus.ch | | | | | | | M (SD) | M (SD) | M (SD) | M (SD)
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| | Primary task | | | | | | TCT (secs) | 607 (165) | 472 (194) | 273 (123) | 422 (220) | | Secondary task | | | | | | Mean RTs (msecs) | 706 (101) | 721 (64.5) | 692 (98.3) | 696 (80.7) | | Accuracy (%) | 46.4 (18.7) | 43.8 (19.7) | 51.3 (19.4) | 51.1 (20.4) | | Subjective measures | | | | | | NASA-TLX | 28.2 (6.3) | 26.2 (7.1) | 19.7 (8.4) | 25.5 (7.4) | | Search/Browse | 84.3 (2.2) | 80.3 (2.0) | 63.2 (2.8) | 77.3 (2.7) | | General satisfaction | 5.41 (2.0) | 5.97 (1.49) | 7.28 (1.6) | 5.0 (1.80) |
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