sign test


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sign test

[′sīn ‚test]
(statistics)
A test which can be used whenever an experiment is conducted to compare a treatment with a control on a number of matched pairs, provided the two treatments are assigned to the members of each pair at random.
References in periodicals archive ?
By contrast, individual Sign Tests supported significant bias in two birds from Anderson et al.
Table 4 Non-Parametric Test Statistics of Cumulative Abnormal Returns by Stock Type for 2009 and 2010 Combined Generalized Generalized Sign Test Rank Test 3-Day Window CTT -2.
A generalized sign test shows that the proportion of positive CARs for firms that mention focus on core competence is significantly greater than chance over the interval days 0 to +1 (p < .
The statistical tools such as the McNemer and the sign tests were applied to analyze the levels of significance of each of the variables before and after the individuals had joined the SHGs.
483 Median 7 3 5 2 The medians are significantly different at the 1% level based on a binomial sign test.
None of daily abnormal returns are statistically significant from the day 2 after the announcement of restatements in terms of the standardized cross-sectional (SCS) test (t-statistic) and the generalized sign test (Z-statistic).
Paper and electronic mean subscale scores were compared using paired Student's t-tests and verified with Sign tests.
Ex Post Evaluation of Free Agent Contracts Signed 1975-1980 and 1998-1999 Win-Loss Record, Aggregate Return (%) Sample Tested 1975-1980 1998-1999 C&D subsample W-L record 34-10 Sign test (p = 0.
Sign test (Gleichlaufigkeit) gives the percent of same direction changes (increase or decrease) in the width of the neighbouring tree rings in two compared rows (Kaennel & Schweingruber 1995, 162).
The nonparametric median sign test was employed to test for the presence of systematic bias.
The new global standard for accreditation of a quality control laboratory, ISO 17025:1999, requires laboratory management to ensure "the compliance of all who operate specific equipment, perform tests and/or calibrations, evaluate results, and sign test reports .