Dyads refers to face to face interview conducted between two respondents sharing their views, motives and information and interacting with each other over some period of time.
A triad is a three-person social group, who may or may not know each other. It is more stable than a dyad.
yes
A dyad is anything that consists of two parts. For example, double chromosomes can be referred to as dyads because they consist of a separation of four chromatid elements.
the main defect of' dobereiner's triads is that he put the chemically dissimilar elements in the same triads (dahal.ramchandra@gmail.com)
The scientist who arranged the elements into triads was Dobereiner.
n*(n-1)/2
The two most common triads are the Major and the minor triad. The other two types of triads are diminished and augmented triads.
a note
Johann Wolfgang Dobereiner,a German chemist arranged atom in the form of triads in 1817.
A classical accompaniment style based on triads.
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Polychord
Döbereiner (working after 1815) was the first which found some rules for the rational arrangement of chemical elements. He proposed in 1829 the law of triads - only five triads were discovered.