Statistical analysis shows us that Wraw is a reliable measure of resilience and the impact on wellbeing. It also indicates that higher resilience is likely to result in higher feelings of wellbeing.

Statistical analysis of the items and scales

Each question – or ‘item’ – in a psychometric questionnaire should contribute something unique and useful to the overall assessment.

For an item to work in the overall scale it needs to be clear, unambiguous and elicit a range of responses from respondents. Items within a scale must also be conceptually coherent. That is, they must be measuring elements of a single concept.

The statistical technique, Chronbach’s Alpha, is used to establish if an item does belong to a scale or if it has no relationship to the other items. In essence the analysis looks to see if all items in a scale elicit similar but not identical responses from individuals who respond.

Statistical analysis shows that each of the measures in Wraw, including the Wraw Index, Resilient Actions, Resilient Thoughts, Impact Index and each of the 5 Pillars, exceeds the 0.80 Chronbach’s alpha value. It is concluded that all scales are reliable measures of their concepts.


The Impact Index in Wraw enables us to establish if there is a relationship between resilience – as measured by the Wraw Index, Resilient Actions, Resilient Thoughts and the 5 Pillars – and the impact on an individual’s wellbeing.

Correlation coefficients are used for this analysis and indicate that there is indeed a significant relationship. This suggests that demonstrating more resilience is likely to lead to a higher score on the Impact Index (i.e. that the individual is feeling fewer effects from challenges, pressures and adversities).

The strongest relationship is between the Resilient Thoughts and the Impact Index, suggesting that the way an individual thinks about their situation has the biggest impact on their wellbeing. While it is always important to be cautious about ascribing a causal relationship to such findings, it does suggest that this is a key area to focus on in terms of positively impacting wellbeing.