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Three software complexity measures (Halstead's E, McCabe's u(G), and the length as measured by number of statements) were compared to programmer performance on two software maintenance tasks. In an experiment on understanding, length and u(G) correlated with the percent of statements correctly recalled. In an experiment on modification, most significant(More)
During recent years, there have been many attempts to define and measure the "complexity" of a computer program. Maurme Halstead has developed a theory that gives objective measures of software complexity. Various studms and experiments have shown that the theory's predictmns of the number of bugs in programs and of the time required to implement a program(More)
AIMS To describe patterns of variation in referral among general practitioners, and to establish whether variability among practitioners within a geographic area is associated with high levels of utilisation in an area. METHOD Multilevel analysis of routinely collected primary care data. The four outcome measures were referral to physiotherapy, specialist(More)
OBJECTIVES To explore the attitudes of clinicians working in New Zealand publicly funded hospitals towards prioritizing patients for elective surgery, and their reported use of clinical priority assessment criteria (CPAC). DESIGN A cross-sectional study using a postal questionnaire. The questionnaire drew on themes identified from an earlier qualitative(More)
The significance of antibiotics as prophylaxis is related to their role in defending against anticipated infection. The critical factor is not only the antibiotic itself, but also the time of administration, which must be within a "decisive period" of three to four hours after the incision. Any inhibitor or enhancer of bacterial growth in a surgical(More)
In an attempt to make rationing of elective surgery in the publicly funded health system more explicit, New Zealand has developed a booking system for surgery using clinical priority assessment criteria (CPAC). This paper is based on research undertaken to evaluate the use of CPAC. To explore whether the goals of explicit rationing were being met 69(More)
OBJECTIVES To describe the ways patients access elective surgery in New Zealand, and to understand the use of, and attitudes to, clinical priority assessment criteria (CPAC) in determining access to publicly funded elective surgery. METHODS A qualitative study in selected New Zealand localities. A purposive sample of general practitioners, surgeons and(More)
AIM To describe the attitudes of general practitioners and specialist clinical teachers toward teaching evidence based medicine (EBM). PARTICIPANTS AND METHODS Questionnaire survey of 114 general practitioner and 162 specialist university teachers teaching EBM. RESULTS Two hundred and six (80%) teachers responded; 196 regularly consulted with patients,(More)
  • Tom Love
  • 1977
A within-subjects experimental design was used to test the effect of two variables on program understanding. The independent variables were complexity of control flow and paragraphing of the source code. Understanding was measured by having the subjects memorize the code for a fixed time and reconstruct the code verbatim. Also some subjects were asked to(More)