ancy Leveson, Sept 1999 Green Program comprehension( 2 Cites results supporting second hypothesis better than first Not predicted by arguments of structured programming which are based solely on presence or absence of good structure Programmers were not simply decoding programming structure top down into some undescribed mental representation. Were reworking one structure into another. Difficulty of answering questions depended not only on source structure but also on relation between source and target structures Observes that result appears to raise insuperable difficulties for those simple-minded computer scientists who attempt to measure psychological complexity of a program by means of a single number, such as McCabe.Copyright Nancy Leveson, Sept. 1999 Green: Program Comprehension (2) Cites results supporting second hypothesis better than first. Not predicted by arguments of structured programming, which are based solely on presence or absence of good structure. Programmers were not simply decoding programming structure top down into some undescribed mental representation. Were reworking one structure into another. Difficulty of answering questions depended not only on source structure but also on relation between source and target structures. Observes that result "appears to raise insuperable difficulties for those simple-minded computer scientists who attempt to measure ‘psychological complexity’ of a program by means of a single number, such as McCabe." ��� c