Elite Athletes’ in-event competitive anxiety responses and psychological skills usage under differing conditions
Hagan Jr., John Elvis ; Pollmann, Dietmar ; Schack, ThomasIn: Frontiers in Psychology, Jg. 8 H. 22802017Examining Pregnancy Related Socio-Cultural Factors Among Adolescent Girls in the Komenda-Edina-Eguafo-Abrem Municipality in the Central Region of Ghana: A Case-Control Study
Ahinkorah, Bright Opoku ; Hagan Jr., John Elvis ; Seidu, Abdul-Aziz ; Mintah, Joseph Kwame ; Sambah, Francis ; Schack, Thomas ; Hormenu, ThomasIn: Frontiers in Public Health, Jg. 72019Exploring temporal patterning of psychological skills usage during the week leading up to competition: Lessons for developing intervention programmes
Hagan Jr., John Elvis ; Pollmann, Dietmar ; Schack, ThomasIn: PLOS ONE, Jg. 12 H. 82017Female adolescents’ reproductive health decision-making capacity and contraceptive use in sub-Saharan Africa: What does the future hold?
Ahinkorah, Bright Opoku ; Hagan Jr., John Elvis ; Seidu, Abdul-Aziz ; Sambah, Francis ; Adoboi, Faustina ; Schack, Thomas ; Budu, EugeneIn: PLOS ONE, Jg. 15 H. 7, S. 1-202020Interaction between Gender and Skill on Competitive State Anxiety Using the Time-to-Event Paradigm: What Roles Do Intensity, Direction, and Frequency Dimensions Play?
Hagan Jr., John Elvis ; Pollmann, Dietmar ; Schack, ThomasIn: Frontiers in Psychology, Jg. 82017Not just numbers: beyond counting caesarean deliveries to understanding their determinants in Ghana using a population based cross-sectional study
Seidu, Abdul-Aziz ; Hagan Jr., John Elvis ; Agbemavi, Wonder ; Ahinkorah, Bright Opoku ; Nartey, Edmond Banafo ; Budu, Eugene ; Sambah, Francis ; Schack, ThomasIn: BMC Pregnancy and Childbirth, Jg. 20 H. 12020Predictors of alcohol consumption among in-school adolescents in the Central Region of Ghana. A baseline information for developing cognitive-behavioural interventions
Hormenu, Thomas ; Hagan Jr., John Elvis ; Schack, ThomasIn: PLOS One, Jg. 13 H. 11, S. 1-162018Rising Above Misinformation or Fake News in Africa: Another Strategy to Control COVID-19 Spread
Ahinkorah, Bright Opoku ; Ameyaw, Edward Kwabena ; Hagan Jr., John Elvis ; Seidu, Abdul-Aziz ; Schack, ThomasIn: Frontiers in Communication, Jg. 5, S. 1-52020Understanding the linkages between male circumcision and multiple sexual partnership among married Ghanaian men. Analysis of data from the 2014 Ghana demographic and health survey
Ahinkorah, Bright Opoku ; Hagan Jr., John Elvis ; Seidu, Abdul-Aziz ; Torgbenu, Eric ; Budu, Eugene ; Schack, ThomasIn: SSM - Population Health, Jg. 11, S. 1-72020