This study was to develop an 18-item Brief Wisdom Development Scale, based on the original 66-item Wisdom Development Scale, and evaluate the psychometric properties of the proposed scale using a sample of older adults. This longitudinal study recruited 153 community-dwelling adults (mean = 72.55 years old; SD = 8.47) from older adult service centres. Using a repeated measures design, the study obtained four waves of data from the participants over 12 months. The Brief Wisdom Development Scale (BWDS) was developed based on the Stepwise Confirmatory Factor Analytical approach (SCOFA), with further verification of its factorial validity using confirmatory factor analysis (CFA). The results suggest that the BWDS comprising 18 items with a six-factor structure is comparable with its full version and possesses good psychometric properties in internal consistency, concurrent validity, and factorial validity. The BWDS provides an efficient, reliable, and valid construct to measure wisdom. The implications for research development are discussed here. form a new scale may have the potential danger of undermining its conceptual equivalency with the original scale.Hence, the aims of this study were threefold. First of all, there is an urgent need to evaluate the WDS. The initial concept of the Wisdom Development Scale (WDS) was introduced in 2004 based on findings from college students [4]. Yet, within five years, the number of items and factor structure of the scale has been significantly adjusted and modified by its original authors [3,5]. As Greene and Brown [5] also urged, 'WDS with a collegiate sample, but cross validation of those findings with other samples, as well as an examination of other types of validity, such as predictive and criterion-based studies, are needed' (p. 290). Second, there is also a need to evaluate the WDS with different respondents and intervention programme. As suggested by Greene and Brown [5], their proposed measure of wisdom can be used to understand 'various types of interventions and experiences' (p. 290). To serve this purpose, this study attempts to evaluate the WDS with a clinical sample recruited from older adult service centres. Lastly, there is a scarcity of studies offering cross-cultural validation and evaluation of the WDS [13,14], and the length of the questionnaire may discourage its use by researchers and practitioners when conceiving surveys or clinical research studies [15,16]. The existing wisdom literature has vividly discussed the limitations of the existing full version of self-reported wisdom measures [1,7,13,14,[17][18][19][20]. The abbreviated versions have thus been developed in recent years to address these limitations [7,12,[21][22][23][24].In short, this study is to critically examine the full version of WDS and develop a brief version of the WDS using the latest psychometric evaluation tools, examining its internal consistency, concurrent validity and factorial validity.