Purpose: To describe and compare the type and quality of evidence published in physical therapy (PT) journals during two time periods (2000-2002 vs. 2010-2012) and to explore scientific editors' opinions on changes in the types and quality of articles. Methods: A quantitative, longitudinal, retrospective journal review was used to categorize and assess the methodological rigour of items published in four PT journals using the Hedges Project. A quantitative, descriptive, cross-sectional survey explored the opinions of scientific editors. Percentages and frequencies of article types (as defined by the Hedges Project criteria), items passing rigour, and editor responses were calculated. Statistical significance of differences in article type and rigour between the two time periods was determined using Fisher's Exact Test. Physical therapists need high-quality scientific literature to inform their own evidence-based practice (EBP). 1 Various study designs can contribute to providing evidence for EBP, including randomized controlled trials (RCTs), 2-5 single-subject designs and case series, 6 cohort and observational studies, 5 and qualitative methodologies. 7,8 While RCTs have been viewed as the ''gold standard'' for quality in research design, 9 they cannot always 382From the:

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