| Answer | Crossword Clue |
|---|---|
| PTOLEMAICSYSTEM | Long-disproven scientific theory |
| RELATIVITY | Scientific theory formulated in 1905. |
| operationalism | the theory that defines scientific concepts by means of the operations used to prove or determine them also OPERATIONISM |
| operationism | the theory that defines scientific concepts by means of the operations used to prove or determine them also OPERATIONALISM |
| operationisms | OPERATIONISM, the theory that defines scientific concepts by means of the operations used to prove or determine them also OPERATIONALISM |
| operationalisms | OPERATIONALISM, the theory that defines scientific concepts by means of the operations used to prove or determine them also OPERATIONISM |
