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STRUCTURES OF DATABASES FOR IMPACT STUDIES OF DEVELOPMENT PROGRAMMES IN A FREE STATISTICAL SOFTWARE: IN THE SOFTWARE ’R’
37-47Views:141In order to carry out effectiveness study of the development programs (e.g. education, children with special needs) based on mathematical-statistical methods, the following factors are important: 1) you need some basic mathematical definitions (Math et all., 2015), 2) a statistical software (e.g.: the ’R’) at a reasonable price, 3) some experience in working with this software. The ’R’ is free downloadable software (that can be applied in mathematical-statistical calculations too) which can be a very useful instrument of research of children who need special treatment. This paper provides a practical solution in connection with the last two factors and introduces language ’R’ and its possibilities.
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MATHEMATICAL STATISTIC BACKGROUND OF EFFECTIVENES STUDIES WHICH COLLECT DATA FROM AN EXPERIMENTAL AND A CONTROLL GROUP ONLY ONCE
73-82Views:106One kind of effectiveness study of developmental programs compares results of an experimental group and a control group (when the data collecting happened only once). This paper offers methodological guidance to choose, apply and interpret adequate mathematical statistic analysis of these studies. Using R environment (this is a downable free software) is recommended to compute statistical results.