Africa, Portugal. Portuguese trading stations in West Africa and the slave trade. Portuguese expansion into Africa began with the desire of King John I to gain access to the gold-producing areas of West Africa.ortuguese trading stations in East Africa and the Slave trade. A map drawn in Spain dated 1375, showing the king of Mali holding a gold nugget. Source: British Library. Well-established gold and ivory trade network existed between African kingdoms in the interior and cities on the east coast of Africa.
Statistical analysis is used in quantitative research to collect, organize, and describe empirical data. All quantitative studies rely on statistical analyses because quantitative research is a method of approaching questions that is based on concrete, observable, objective, and measurable data.
Examples of quantitative research include experiments or interviews/questionnaires that used closed questions or rating scales to collect information. Applications of Quantitative and Qualitative Data. Qualitative data and research is used to study individual cases and to find out how people think or feel in detail. It is a major feature of case studies. Quantitative data and research is used to study trends across large groups in a precise way. Examples include clinical trials or censuses. When to use qualitative vs. quantitative research?