behavioralresearch behavioralsciences factoranalysis growth methodology methods models research researchdesign schaalmethoden skalierung smallbusiness socialchange socialentrepreneurship socialsciences sociometrictechniques sozialwissenschaften statistical statistics statisticsastopic stochasticprocesses techniquesandorganizationofsocialscienceresearch theoretical uncertainty(informationtheory) weightsandmeasures wm20d489s2003