1 the use of a variety of data sources (data triangulation) 2  the use of several different researchers (investigator triangulation) 3  the use of multiple perspectives to interpret the results (theory triangulation)  the use of multiple methods to study a research problem (methodological triangulation)
The Articles of Confederation was the United States' first constitution. Proposed by the Continental Congress in 1777, it was not ratified until 1781.
The Articles of Confederation was the first constitution of the United States. The government established by the Articles conducted the affairs of the country during the last two years of the Revolutionary War. It helped to negotiate the Treaty of Paris in 1783, and produced important pieces of legislation.