For curves of the same radius but different angular change, a change by 90° has higher difficulty than a change by 45° due to the longer distance of the curve in the first case.
Questions generated to assess the students in the knowledge level are easier than questions generated to assess the students in the comprehension level, as they have higher CTT difficulty indices (Spearman's R = 0.614, P-value <0.01) and lower IRT difficulty indices (Spearman's R = -0.616, P-value <0.01).
These items would inevitably have high item difficulty statistics (>.90) with almost all students getting the items correct.
In end-of-life conferences, families who spend more time describing their concerns and verbalizing their emotions and difficulties have higher levels of satisfaction and a lower risk of pathological grieving [58],[67],[68].
Children from poor lone mother families have higher rates of these difficulties than children from non-poor lone mother families or poor or non-poor two-parent families[ 7].
In end-of-life conferences, families who spend more time describing their concerns and verbalizing their emotions and difficulties have higher levels of satisfaction and a lower risk of pathological grieving [ 58],[ 67],[ 68].
They also have higher smoking prevalence and more difficulty quitting smoking.
Questions generated using terminology-based strategies had higher CTT difficulty indices (Spearman's R = 0.476, P-value <0.01) and lower IRT difficulty indices (Spearman's R = -0.583, P-value <0.01).
Obese children had higher perceived difficulty with several activities of daily living, were less engaged in sports, and had lower physical performance than normal-weight or overweight children; on the contrary, they did not differ with regard to time spent in sedentary behaviors.
The main results of this study indicate that obese children had higher perceived difficulty with several activities of daily living, were less engaged in sports, and had lower physical performance than normal-weight or overweight children; on the contrary, they did not differ with regard to sedentary behaviors.
Davidson's study included only ambulatory patients from physiotherapy departments, and the result showed most persons had lower logits difficulty (less disability), while items had higher logits difficulties (more disability) [ 9].
