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#'Self-Confidence
#'
#'A set of center distances and latent correlations for items and facets of the
#'Domain Specific Self-Esteem Inventory (DSSEI), Sports Mental Toughness
#'Questionnaire (SMTQ), and Rosenberg Self-Esteem Scale (RSES) completed by 2272
#'german speaking participants using the german versions of the questionnaires.
#'SEM estimation performed for all tests as one item pool.
#'
#'
#'@section Items:
#'
#' _____ RSES _____
#'
#' __ Positive Self-Esteem (Ps) __
#'
#' 1. On the whole, I am satisfied with myself.
#'
#' 3. I feel that I have a number of good qualities.
#'
#' 4. I am able to do things as well as most other people.
#'
#' 7.I feel that I'm a person of worth.
#'
#' 10. I take a positive attitude toward myself.
#'
#' __ Lack of Negative Self-Esteem (Ns) __
#'
#' 2. At times I think I am no good at all.
#'
#' 5. I feel I do not have much to be proud of.
#'
#' 6. I certainly feel useless at times.
#'
#' 8. I wish I could have more respect for myself.
#'
#' 9. All in all, I am inclined to think that I am a failure.
#'
#' (Rosenberg, M. (1965). Rosenberg self-esteem scale (RSE). Acceptance and
#' commitment therapy. Measures package, 61, 52.)
#'
#' _____ SMTQ _____
#'
#'
#' __ Confidence (Cf) __
#'
#' 13. I interpret potential threats as positive opportunities
#'
#' 5. I have an unshakeable confidence in my ability
#'
#' 11. I have qualities that set me apart from other competitors
#'
#' 6. I have what it takes to perform well while under pressure
#'
#' 14. Under pressure, I am able to make decisions with confidence and
#' commitment
#'
#' 1. I can regain my composure if I have momentarily lost it
#'
#' __ Constancy (Cs) __
#'
#' 3. I am committed to completing the tasks I have to do
#'
#' 12. I take responsibility for setting myself challenging targets
#'
#' 8. I give up in difficult situations
#'
#' 10. I get distracted easily and lose my concentration
#'
#' __ Control (Ct) __
#'
#' 2. I worry about performing poorly
#'
#' 4. I am overcome by self-doubt
#'
#' 9. I get anxious by events I did not expect or cannot control
#'
#' 7. I get angry and frustrated when things do not go my way
#'
#' (Sheard, M., Golby, J., & Van Wersch, A. (2009). Progress toward construct
#' validation of the Sports Mental Toughness Questionnaire (SMTQ). European
#' Journal of Psychological Assessment, 25(3), 186-193.)
#'
#' _____ DSSEI _____
#'
#'
#' __ Social Competence (So) __
#'
#' 1. I usually feel as if I have handled myself well at social gatherings.
#'
#' 5. I feel secure in social situations.
#'
#' 9. I feel confident of my social behaviour.
#'
#' 13. I am often troubled with shyness. (R)
#'
#' 17. At social gatherings I am often withdrawn, not at all outgoing. (R)
#'
#' __ Task-Related Abilities (Ab) __
#'
#' 2. I feel as if I lack the necessary skills to really succeed at the work
#' I do. (R)
#'
#' 6. I am able to do things as well as most other people.
#'
#' 10. I usually expect to succeed at the things I do.
#'
#' 14. I almost always accomplish the goals I set for myself.
#'
#' 18. In general, I feel confident about my abilities.
#'
#' __ Physical Appeal (Ph) __
#'
#' 3. I feel that others would consider me to be attractive.
#'
#' 7. I'm not as nice looking as most people. (R)
#'
#' 11. I feel confident that my physical appearance is appealing to others.
#'
#' 15. I am satisfied with the way I look.
#'
#' 19. I feel unattractive compared to most people my age. (R)
#'
#' __ Public Presentation (Pb) __
#'
#' 4. When I speak in a large group discussion, I usually feel sure of
#' myself.
#'
#' 8. I enjoy being in front of large audiences.
#'
#' 12. I feel quite confident when speaking before a group of my peers.
#'
#' 16. I find it very hard to talk in front of a group. (R)
#'
#' 20. When I talk in front of a group of people my own age, I am usually
#' somewhat worried or afraid. (R)
#'
#' (Hoyle, R. H. (1991). Evaluating measurement models in clinical research:
#' Covariance structure analysis of latent variable models of self-conception.
#' Journal of Consulting and Clinical Psychology, 59(1), 67.)
#'
#'@source Dantlgraber, M., Stieger, S., & Reips, U. D. (2019). Introducing Item
#' Pool Visualization: A method for investigation of concepts in self-reports
#' and psychometric tests. Methodological Innovations, 12(3), 2059799119884283.
#'
"self_confidence"
#' IPIP HEXACO Equivalent Scales
#'
#' Cleaned-up data from an ad-hoc online sample of n = 22786 participants on the
#' 240 items of the IPIP HEXACO Equivalent Scales. Data were collected before
#' 21st June 2014 within the Open-Source Psychometrics Project
#' (\url{https://openpsychometrics.org/}). After including only those
#' participants who did at least "agree" on the items "I understand the
#' instructions for this test." and "I have answered all of these questions as
#' accurately as possible.", data on n = 20365 participants remains.
#'
#' @section Items:
#'
#' \url{https://ipip.ori.org/newhexaco_pi_key.htm}
#'
#' @source:
#'
#' \url{https://openpsychometrics.org/_rawdata/} (May 6th, 2020)
"HEXACO"
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