Scale Analysis

The Inventory of Strengths Youth Ages 10–17 was developed by Park and Peterson in 2003. It is a self-report tool that evaluates whether character strengths generally hold meaning for adolescents, whether they typically recognize these strengths in their environment, whether they can identify ownership of many strengths, and what they believe about the origin and development of these strengths.

Objective

The purpose of the Inventory of Strengths for Children is to assess character strengths that positively contribute to development and growth, such as intrapersonal and interpersonal abilities.

Item Scoring

Participants are asked to respond based on how well each statement describes them. The questionnaire consists of 198 items (7–9 per subscale), using a 5-point Likert scale ranging from 1 (Very much like me) to 5 (Not at all like me). The questionnaire takes approximately 45 minutes to complete.

Statistical Analysis

The scale does not produce an overall score but provides a separate score for each subscale (7–9 items), calculated by summing the scores of each item. The score range for each subscale is from 7 to 45. About one-third of the items are reverse-scored.

Validity and Reliability

The scale has been adapted into Greek by Stalikas, Charalambous, and Galanaki and is currently undergoing standardization. Internal consistency was good to excellent, with a Cronbach’s alpha of 0.87 (min = 0.69, max = 0.95).

References

Park and Peterson (2003)
Greek adaptation: Stalikas, Charalambous, and Galanaki