| CARLJUNG | Which psychologist originated the concept of introvert and extrovert personality? (4,4) |
| PERSONALITYTYPE | Categories in psychology, such as introvert and extrovert, for grouping people (11,4) |
| SKINNER | Which psychologist developed the principle of reinforcement and, with Ferster, published Schedules o |
| VERTICAL | Part of introvert I called upright (8) |
| ZANDRARHODES | English fashion designer famed for her printed textiles and extrovert style (6,6) |
| OMPHALOS | Member rings round first for object of introvert's attention (8) |
| QUIET | Susan Cain book subtitled "The Power of Introverts in a World That Can't Stop Talking" |
| INVERT | Sort out introverts and turn back (6) |
| NAPIER | Surname of the British conqueror of Sindh, and of the mathematician who originated the concept of logarithms (6) |
| MANETHO | Egyptian priest of the 3rd century BC whose Greek Aegyptiaca (History of Egypt) originated the concept of pharaonic dynasties (7) |
| ADLER | Alfred, Austrian psychiatrist who originated the concept of the 'inferiority complex' (5) |
| BABBAGE | Charles ---, English mathematician and engineer who originated the concept of a programmable computer (7) |
| FRANZMESMER | Austrian physician (1734-1815) who originated the concept of 'animal magnetism' (5,6) |
| ELTON | Zoologist and author of Animal Ecology who was one of the inventors of the concept of the food chain (5) |
| CRYOGENICS | Using the concept of absolute zero and the Kelvin or Rankine scales, the branch of physics that stud |
| BAUM | Author who anticipated the concept of augmented reality in his 1901 story The Master Key and also penned the Oz series of books (4) |
| ANDREWS | Surname of one of the designers of RMS Titanic; or, the chemist who established the concepts of crit |
| RYLE | English philosopher who wrote The Concept of Mind and coined the phrase "ghost in the machine" (4) |
| GELLMANN | Nobel Prize-winning physicist who proposed the concept of strangeness in quarks and contributed towards the classification of elementary particles (4-4) |
| RADICAL | The base form of a word, a political extremist, a reactive chemical species, sign or zero of a function, all linked by the concept of "root" (7) |
