**GPS Functionalities and Spatial Ability**
**H1**: High spatial ability/measures will be associated with lower average reported usage of GPS for turn-by-turn navigation assistance across all navigation scenarios, compared to those with low spatial ability.
**H2**: High spatial ability will be associated with lower reported usage of GPS for turn-by-turn navigation assistance across navigation scenarios with higher familiarity levels.
- Low spatial ability will be associated with higher reported usage of GPS for turn-by-turn navigation assistance across navigation scenarios with higher familiarity levels.
**H3**: High spatial ability will be associated with increased reported usage of GPS for route-planning across navigation scenarios, in comparison to low spatial ability.
**H4**: No expected significant differences between high/low spatial ability for reported usage of GPS in navigation scenarios that are unfamiliar and/or far away.
