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. 2019 Jun 5;10:13–21. doi: 10.2147/SAR.S198361

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© 2019 Ling et al.

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Item distribution and floor-ceiling effects at baseline^a. (A) TEA Item 1: substance use. (B) TEA Item 2: health. (C) TEA Item 3: lifestyle. (D) TEA Item 4: community.

Note: ^aGiven that there are ten response options for each item, an item may be subject to a floor or ceiling effect if more than 10% (=100/the number of response options) of responses are in the highest or lowest response categories.

Abbreviation: TEA, Treatment Effectiveness Assessment.