Collecting and Organising Data
完成条件
按索引浏览词汇表
特殊 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 全部
O
ObservationCollecting data by watching and recording without interfering. | |
Observational studyA study that records information without changing the conditions being investigated. | |
Ordinal levelA level of measurement with ordered categories. | |