@article{BrandVoelckerRehage2020,
  author    = {Brand, Ralf and Voelcker-Rehage, Claudia},
  title     = {DEAL und eine Zwischenbilanz {\"u}ber die Entwicklung der Zeitschrift},
  series = {German journal of exercise and sport research},
  volume    = {50},
  journal   = {German journal of exercise and sport research},
  number    = {1},
  publisher = {Springer},
  address   = {New York},
  issn      = {2509-3142},
  doi       = {10.1007/s12662-020-00645-y},
  pages     = {1 -- 4},
  year      = {2020},
  language  = {de}
}
@article{LabudekSchweizerRothetal.2019,
  author    = {Labudek, Sarah and Schweizer, Geoffrey and Roth, Anika and Pizzera, Alexandra and Plessner, Henning and Brand, Ralf},
  title     = {REFS-D},
  series = {Zeitschrift f{\"u}r Sportpsychologie},
  volume    = {26},
  journal   = {Zeitschrift f{\"u}r Sportpsychologie},
  number    = {1},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {1612-5010},
  doi       = {10.1026/1612-5010/a000256},
  pages     = {15 -- 24},
  year      = {2019},
  abstract  = {Ziel des vorliegenden Artikels ist die teststatistische {\"U}berpr{\"u}fung und Validierung einer deutschsprachigen Version der Referee Self-Efficacy Scale (REFS). Die REFS erfasst im englischsprachigen Original die Selbstwirksamkeit von Schiedsrichterinnen und Schiedsrichtern mit den Subskalen Wissen {\"u}ber das Spiel, Entscheidungsfindung, Druck und Kommunikation. Die Items wurden mit Hilfe der {\"U}bersetzung-R{\"u}ck{\"u}bersetzung ins Deutsche {\"u}bertragen. Die Struktur und die psychometrischen Eigenschaften der deutschen Items wurden anhand einer Stichprobe aus 265 deutschsprachigen Fußballschiedsrichterinnen und -schiedsrichtern {\"u}berpr{\"u}ft. Da die im englischsprachigen Original vorgeschlagene Skalenzuordnung der REFS nach der {\"U}bersetzung ins Deutsche nicht replizierbar war, wurden Items mit mangelhaften Skaleneigenschaften aus der deutschsprachigen REFS-Version (REFS-D) ausgeschlossen. Das Resultat der Analysen ist eine Skala mit acht Items, die sich drei Subskalen, Spielumsetzung, Druck und Kommunikation, zuordnen lassen. Die REFS-D weist zufriedenstellende interne Konsistenzen und signifikante mittelhohe Korrelationen mit allgemeiner Selbstwirksamkeit auf. Trotz einiger Einschr{\"a}nkungen stellt die REFS-D als {\"o}konomische Skala einen Ansatzpunkt f{\"u}r zuk{\"u}nftige Forschung dar.},
  language  = {de}
}
@article{HeinzHeidenreichWenholdetal.2011,
  author    = {Heinz, Kathrin and Heidenreich, Thomas and Wenhold, Franziska and Brand, Ralf},
  title     = {Mindfulness and acceptance basic principles and perspectives of a new approach in sport psychology training},
  series = {Zeitschrift f{\"u}r Sportpsychologie},
  volume    = {18},
  journal   = {Zeitschrift f{\"u}r Sportpsychologie},
  number    = {4},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {1612-5010},
  doi       = {10.1026/1612-5010/a000056},
  pages     = {145 -- 154},
  year      = {2011},
  abstract  = {Mindfulness and acceptance describe the skills necessary to experience emotions and thoughts (e.g., performance-interfering cognitions) consciously and without judging them. This article introduces the mindfulness and acceptance approach and its potential in the context of competitive sports. Definitions as well as research results related to mechanisms of action and differential psychological aspects are given and the efficacy of the approach in the field of clinical psychology is reviewed. The rationale and implementation of the mindfulness-acceptance-commitment approach, an approach adapted for performance enhancement, is illustrated. Finally, evidence from psychotherapy research is presented, and a recommendation for the use of mindfulness and acceptance in the context of competitive sports is given.},
  language  = {de}
}
@article{EhrlenspielGrafKuehnetal.2011,
  author    = {Ehrlenspiel, Felix and Graf, Karla and K{\"u}hn, Christian and Brand, Ralf},
  title     = {Stability and variability of competitive anxiety},
  series = {Zeitschrift f{\"u}r Sportpsychologie},
  volume    = {18},
  journal   = {Zeitschrift f{\"u}r Sportpsychologie},
  number    = {1},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {1612-5010},
  doi       = {10.1026/1612-5010/a000034},
  pages     = {31 -- 43},
  year      = {2011},
  abstract  = {Spielberger's (1972) Trait-State-Anxiety theory distinguishes between anxiety as a trait (A-trait) - involving a stable characteristic of a person to react with anxiety in response to varying situations and anxiety as a state (A-state), a situation-dependent reaction to a stimulus perceived as threatening. Using a general instead of a sport-specific measure, a previous study provided only mixed support for core predictions of the theory as related to sports (Schwenkmezger, 1985). With the aid of enhanced instruments and statistical methods, we tested these predictions again. The multidimensional and competition-specific assessment of anxiety results in support for the assumption of a stable A-trait and a fluctuating A-state, whereby the A-trait not only predicts the intensity of A-states but also the A-state variability. The repeated assessment of A-states prior to two competitions reveals a rather low relative consistency (i.e., interindividual differences across measurements were only moderately stable). Especially this latter finding suggests that, in order to gain a full understanding of the experience of competitive anxiety in athletes, sport psychologists should not only assess competitive A-traits, but also repeatedly measure competitive A-states.},
  language  = {de}
}
@article{KahlertBrand2011,
  author    = {Kahlert, Daniela and Brand, Ralf},
  title     = {Questionnaires for assessing physical activity different response scale categories influence responses concerning health- and sport-related cognitions},
  series = {Zeitschrift f{\"u}r Gesundheitspsychologie},
  volume    = {19},
  journal   = {Zeitschrift f{\"u}r Gesundheitspsychologie},
  number    = {2},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {0943-8149},
  doi       = {10.1026/0943-8149/a000044},
  pages     = {96 -- 100},
  year      = {2011},
  abstract  = {The present study examines whether the use of different frequency scales in questionnaires about physical activity influences respondents' own estimation of their activity, as well as subsequent measurements of health- und sport-related cognitions and evaluations. Using a randomized research design we recruited a sample of 118 participants. One group received a high frequency scale for assessing their exercise frequency with the response categories "never", "less often", "once a month", "once a week", or "most days." The other group answered with a medium frequency scale with the alternatives "never", "less often", " once every few months", "once a month", and " once a week or more often." As dependent variables all participants judged the subjective importance of physical activity and their health-related quality of life (WHO-QOL-bref). Results indicate the expected response errors, owing to the fact that using a high-frequency scale produces higher levels of self-reported physical activity (Cramer's V = .30). Corresponding to this the subjective importance of physical activity increased (d = .37) and the health-related quality of life was judged to be better (d = .36). Such artefacts might be eliminated by using standardized formulations such as "I exercise... times per week/month for... minutes."},
  language  = {de}
}
@article{KahlertBrand2011,
  author    = {Kahlert, Daniela and Brand, Ralf},
  title     = {Comparing self-report and accelerometry data a contribution to the validation of the MoMo-Physical activity questionnaire for children and adolescents},
  series = {Deutsche Zeitschrift f{\"u}r Sportmedizin : offizielles Organ der Deutschen Gesellschaft f{\"u}r Sportmedizin und Pr{\"a}vention (Deutscher Sport{\"a}rztebund) e.V. (DGSP) und Weiterbildungsorgan der {\"O}sterreichischen Gesellschaft f{\"u}r Sportmedizin und Pr{\"a}vention},
  volume    = {62},
  journal   = {Deutsche Zeitschrift f{\"u}r Sportmedizin : offizielles Organ der Deutschen Gesellschaft f{\"u}r Sportmedizin und Pr{\"a}vention (Deutscher Sport{\"a}rztebund) e.V. (DGSP) und Weiterbildungsorgan der {\"O}sterreichischen Gesellschaft f{\"u}r Sportmedizin und Pr{\"a}vention},
  number    = {2},
  publisher = {WWF-Verl.-Ges.},
  address   = {Greven},
  issn      = {0344-5925},
  pages     = {36 -- +},
  year      = {2011},
  abstract  = {According to the results of the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) published in 2009, only 5\% to 8\% of the 15-17-year-old adolescents reach the current recommendations on health-enhancing physical activity This result (besides others in the survey) rests on data measured with the 25-item physical activity questionnaire for children and adolescents (MoMo-AFB). The present study compares two different methods of assessing physical activity with the purpose of testing the validity of the MoMo-AFB self-report. First, we measured the physical activity status of 73 15 to 18-year-old pupils (32 boys and 41 girls) over seven days via objective accelerometry (ActiGraph GT1M), then the pupils completed the MoMo-AFB for the same (previous) period. Results show that using the MoMo-AFB leads to higher levels of self-reported physical activity than measuring it with accelerometers. Furthermore, only the MoMo-AFB subscale MVPA (moderate-to-vigorous physical activity), that uses two single items to decide whether the health-enhancing physical activity recommendation is reached or failed, corresponds statistically significantly with the accelerometry data. For all other subscales (e.g. school- or leisure time activity), we found no agreement. Further research, first of all on the measurement quality of the MoMo-AFB but also on the physical (in)activity status of children and adolescents, is needed.},
  language  = {de}
}
@article{KleinertBrand2011,
  author    = {Kleinert, Jens and Brand, Ralf},
  title     = {Quality management of sport psychology care in competitive sports - (no) effect without acceptance?!},
  series = {Zeitschrift f{\"u}r Sportpsychologie},
  volume    = {18},
  journal   = {Zeitschrift f{\"u}r Sportpsychologie},
  number    = {2},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {1612-5010},
  doi       = {10.1026/1612-5010/a000041},
  pages     = {60 -- 72},
  year      = {2011},
  abstract  = {In the past decade quality management (QM) has grown to be one of the most important topics in the area of applied sport psychology. There we discuss structures, processes, and results concerning QM, considering the QM model of the European Foundation of Quality Management (EFQM). In terms of results, quality can be defined in three areas: the coaching process itself (e. g., satisfaction and well-being of coach and client), psychological skills (e. g., efficacy of techniques used by the client), and health, personality, as well as sport performance (e. g., client's motor behavior in training and competition). Measures and processes to improve and ensure quality in these three areas are discussed as being dependent on four types of determinants: associated institutions, sport psychologists (i.e., individual competence and valence of tasks), coaching character, and socio-economic factors. As key processes of QM in this complex structure, both orientation to stakeholders and communication about quality and QM measures are identified.},
  language  = {de}
}
@article{KrausEngbertDollingeretal.2012,
  author    = {Kraus, Uta and Engbert, Kai and Dollinger, Anika and Heiss, Christian and Brand, Ralf},
  title     = {Evaluation of a mitial interview guide for sport psychology counseling},
  series = {Zeitschrift f{\"u}r Sportpsychologie},
  volume    = {19},
  journal   = {Zeitschrift f{\"u}r Sportpsychologie},
  number    = {4},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {1612-5010},
  doi       = {10.1026/1612-5010/a000080},
  pages     = {145 -- 162},
  year      = {2012},
  abstract  = {The initial interview is important for psychological counseling regarding the acquisition of diagnostic information and in terms of establishing a professional counseling relationship. In applied sports psychology there so far exist no clear guidelines to structure this process. To improve the quality of sports psychological consultations, the present study introduces and evaluates a semi-structured guideline for an initial interview in which the content and form of the consultation are determined, the concerns of the client are systematically explored, and the objectives of the collaboration and the further process are defined. Eleven sport psychology trainees participated in our study and conducted initial interviews with actors. One interview was conducted by using the initial interview guide and the other interview was created individually by each sport psychology trainee based on his own expertise. The results showed that the quality of the interview process (i.e., formal requirements, use of open questions) as well as the satisfaction of the consultant with the interview was significantly higher when following the guideline. No differences were found regarding the quality of the consultation findings and the satisfaction of the athletes with the interview. The results are discussed with respect to their theoretical and practical implications.},
  language  = {de}
}
@book{Brand2010,
  author    = {Brand, Ralf},
  title     = {Sportpsychologie},
  series = {Basiswissen Psychologie},
  journal   = {Basiswissen Psychologie},
  publisher = {VS Verlag f{\"u}r Sozialwissenschaften / GWV Fachverlage GmbH Wiesbaden},
  address   = {Wiesbaden},
  isbn      = {978-3-531-16699-5},
  doi       = {10.1007/978-3-531-92445-8},
  pages     = {155 S.},
  year      = {2010},
  language  = {de}
}
@article{BrandSchlicht2008,
  author    = {Brand, Ralf and Schlicht, Wolfgang},
  title     = {Sportpsychologische Interventionen in der Therapie und Rehabilitation},
  isbn      = {978-3-8017-0597-8},
  year      = {2008},
  language  = {de}
}