81. Concepts are ___ of ResearchA. guideB. toolsC. methodsD. Variables AnswerB. tools 82. Concepts are ___A. MetaphorB. SimileC. SymbolsD. Models AnswerC. Symbols 83. Concepts represent various degree of ___A. FormulationB. CalculationC. AbstractionD. Specification AnswerC. Abstraction 84. Concepts which cannot be given operational definitions are ___ conceptsA. VerbalB. OralC. HypotheticalD. Operational AnswerC. Hypothetical 85. “Concept is…