International Journal of Data Science and Analysis

Volume 2, Issue 1, October 2016

  • Extensions of Tests of Indirect Effect in Mediation Analysis

    Chike Henry Nwankwo, Amechi Henry Igweze

    Issue: Volume 2, Issue 1, October 2016
    Pages: 1-6
    Received: 19 July 2016
    Accepted: 27 July 2016
    Published: 5 September 2016
    DOI: 10.11648/j.ijdsa.20160201.11
    Abstract: This study seeks to determine economic variables that jointly mediate upon government expenditure and unemployment in Nigeria and in proven cases of mediation, determine the type of mediation that exist. It compares the two methods of calculating indirect effect which are product of coefficient and difference of coefficients respectively. Furthermo... Show More
  • Rescaling Residual Bootstrap and Wild Bootstrap

    Acha Chigozie Kelechi

    Issue: Volume 2, Issue 1, October 2016
    Pages: 7-14
    Received: 20 July 2016
    Accepted: 14 October 2016
    Published: 28 October 2016
    DOI: 10.11648/j.ijdsa.20160201.12
    Abstract: This paper examines and discusses a comparative analysis of hypothetical data by using bootstrap methods. The residual and wild bootstrap methods, including their rescaled versions were applied on the data collected from a normal distribution with different ability levels to check whether they are significant at various assessment conditions. The w... Show More