| color_badge | Create a colored HTML span badge (UI helper) |
| comment_overall_keys | Generate translation keys for overall comments |
| detect_id_cols | Detect ID columns using regex |
| difficulty_label_key | Generate label key for difficulty (p) |
| discrimination_decision_key | Generate label key for discrimination (r) |
| d_mode | Calculate the mode |
| get_itemexam_quant | Safely get quantile from 'psychometric' package |
| i18n_load | Load translation dictionary |
| i18n_t | Translate a UI/message key |
| is_scored_01 | Check if a vector is scored 0/1 |
| kr20 | Calculate KR-20 reliability coefficient |
| norm_cols | Normalize Column Names |
| norm_letter | Normalize letter grades |
| parse_lc_bin | Parse 1/0 coded data |
| parse_lc_raw | Parse raw continuous/Likert scores |
| parse_mc_bin | Score Multiple Choice items as 1/0 |
| parse_tf_bin | Score True/False items as 1/0 |
| pbiserial_rest | Point-biserial correlation for item analysis |
| q_index | Calculate q-index (1 - p) |
| run_app | Launch examly Shiny application |
| student_counts | Student-level counts (Correct/Incorrect/Missing) |