https://www.selleckchem.com/products/VX-770.html Under COVID-19, the child welfare system faces unprecedented challenges and uncertainty (e.g. (partial) loss of cooperation opportunities with key partners) whilst showing signs of remarkable resilience (e.g. child protection workers' ability to adjust to new conditions). While the potential of digitalising work processes in child protection has become apparent in the pandemic, the proven continuous face-to-face contact between practitioners and their clients is neither dispensable nor replaceable. Under COVID-19, the child welfare system faces unprecedented challenges and uncertainty (e.g. (partial) loss of cooperation opportunities with key partners) whilst showing signs of remarkable resilience (e.g. child protection workers' ability to adjust to new conditions). While the potential of digitalising work processes in child protection has become apparent in the pandemic, the proven continuous face-to-face contact between practitioners and their clients is neither dispensable nor replaceable.Background Fear of Harm (FoH) predicts return to sports in Anterior Cruciate Ligament Reconstruction (ACLR) and can be assessed using the Photographic Sports Activities for ACLR (PHOSA-ACLR). This study was conducted to determine whether FoH assessed using the PHOSA-ACLR is a latent trait, and to analyze differences in PHOSA-ACLR in athletes with or without an ACL rupture. Methods Three convenience samples completed the PHOSA-ACLR (1) ACLR patients (n = 58; mean age 25.9 years; range 17-56; SD = 8.2; 43% male); (2) first year Physical Therapy (PT) students (n = 169; mean age = 19.2; SD = 2.0; 48% male), and (3) junior football players (n = 30; mean age = 18.3; range 17-20; SD = 3.2; 94% males). ACLR patients additionally reported functioning and Fear of Movement. PHOSA-ACLR items were analyzed with Item Response Theory using the Graded Response Model (GRM). Differences between three groups of participants were analyzed using Univa