Multi-modal assessment of on-road demand of voice and manual phone calling and voice navigation entry across two embedded vehicle systems.

Ergonomics · 2016 · PMC4917911 · PMID 26269281

Europe PMC DOI

hedged sentences

0.0040

closest p · 0.1× alpha

0.1500

boldest claim

The sentences

difference was apparentp = 0.004actually significant

An evaluation of mean speed based on vehicle CAN data indicated a significant overall difference in speed between the two vehicles (Volvo M = 107.5 km/h; Chevrolet M = 111.6 km/h; F (1,78) = 5.4, p < 0.023); this difference was apparent even during baseline just driving periods (109.4 and 113.1 km/h, respectively; F (1,78) = 8.9, p = 0.004).

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did not reach statistical significancep = 0.15not close (p > 0.1)

Subjective workload Mean self-reported workload for navigation address entry was nominally higher for the MyLink system ( M = 3.59; SE = 0.44) than for Sensus ( M = 2.54; SE = 0.28); however, this difference did not reach statistical significance ( W = 925, p = 0.15). 3.3.2.

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