That is, the item should measure what it is intended to measure.If you are constructing an index of religiosity, items such as church attendance and frequency of prayer would have face validity because they appear to offer some indication of religiosity.A distinctive characteristic of this study is that to construct the scale, an initial pool of items, covering the remembered and experienced well-being domains, were subjected to a complete selection and validation process.These items were based on widely used scales (e.g., PANAS, Satisfaction With Life Scale, Subjective Happiness Scale, and Psychological Well-Being Scales).The result of this was a myriad of different validities (intrinsic validity, face validity, logical validity, empirical validity, etc.).This made it difficult to tell which ones were actually the same and which ones were not useful at all.
The first step in creating an index is selecting the items you wish to include in the index to measure the variable of interest.Links to available abstracts, and when available, links to the full text on the Journal web sites are provided (search for . Our apologies in advance for uncertainties, errors, and omissions. A second criterion for choosing which items to include in your index is unidimensionality.That is, each item should represent only one dimension of the concept you are measuring.Given the PHI’s good psychometric properties, this simple and integrative index could be used as an instrument to monitor changes in well-being.