1. The measurement of mental ability of ‘backward’ children;Abelson;Brit. J. Psychol.,1911
2. Experimental studies in recall and recognition;Achilles;Arch. Psychol.,1920
3. A group factor in immediate memory;Anastasi;Arch. Psychol.,1930
4. Further studies on the memory factor;Anastasi;Arch. Psychol.,1932
5. A study in logical memory;Austin;Amer. J. Psychol.,1921