18 Items of the 3 IPIP-VIA-R-Based Global Core Strength Scales (Partsch, Olaru, & Lechner, 2022)
Positivity (rtt = .72/.80; Ω = .66/.74)*
+ keyed	Remain hopeful despite challenges.
	Look forward to each new day.
	Know that there are people in my life who care as much for me as for themselves.
- keyed	Find few things in my life to be grateful for.
	Find it hard to forgive others.
	Have difficulty accepting love from anyone.

Dependability (rtt = .75/.70; Ω = .72/.81)*
+ keyed	Make careful choices.
	Would never be described as arrogant.
	Believe that everyone's rights are equally important.
- keyed	Lie to get myself out of trouble.
	Get impatient when others talk to me about their problems.
	Take advantage of others.

Mastery (rtt = .72/.68; Ω = .63/.78)*
+ keyed	Am an original thinker.
	Have a mature view on life.
	Am valued by my friends for my good judgment.
- keyed	Do not stand up for my beliefs.
	Have trouble guessing how others will react.
	Have difficulty getting others to work together.

* Note: Reliability estimates obtained from a quality-filtered quota sample in Germany (n_test = 420, n_retest = 202; based on a German adaption of the scales; presented before the ‘/’) and a quality-filtered parallel sample in the U.K. (n_test = 440, n_retest = 199; presented behind the ‘/’) in a 3-form planned missingness design; r_tt: test-retest reliability with an interval between 2-3 weeks using pairwise complete observations; Ω: McDonald’s Omega composite reliability based on the fitting scalar invariant (i.e., across Germany and the U.K.) multi-group CFA measurement model including three correlated latent core strength variables and an uncorrelated latent acquiescence variable using full information maximum likelihood (FIML).

Partsch, M. V., Olaru, G., & Lechner, C. M. (2022). Measuring global character dimensions: An ant colony optimization approach towards three core strengths scales. PsyArXiv. https://doi.org/10.31234/osf.io/tdjh4

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