Experimental Research Experimental Research Definition: Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment and manipulation. (dependent vs. independent variables) Disadvantages: 1) artificial and limited in relevance 2) relations among isolated variables may not hold 3) temporally limited 4) demand characteristics Advantages: 1) potential for careful manipulation of the variables of interest 2) data free from biased or subjective interpretation 3) establishment of cause and effect relations

Experimental Research Definition: Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment

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Page 1: Experimental Research Definition: Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment

Experimental ResearchExperimental ResearchDefinition:

Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment and manipulation. (dependent vs. independent variables)

Disadvantages:1) artificial and limited in relevance 2) relations among isolated variables may not hold3) temporally limited4) demand characteristics

Advantages:1) potential for careful manipulation of the variables of interest2) data free from biased or subjective interpretation 3) establishment of cause and effect relations

Page 2: Experimental Research Definition: Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment

Experimental ResearchExperimental ResearchSeligman’s Theory of Learned Helplessness

Exposed dogs to unavoidable shock or not

Place dogs in new situation where shock is avoidableDogs who were initially exposed to inescapable shock are less likely to escape from shock in new situationConcluded that dogs “learned” they were helpless. Offered that this might serve as model of human depression.

Page 3: Experimental Research Definition: Efforts to gain control over the variables of interest and establish if-then causal relationships. Involves random assignment

Experimental Research around Experimental Research around PersonalityPersonality

Think of a question that interests you Think of a question that interests you about personality:about personality:

Could this question be addressed Could this question be addressed using an experimental method? using an experimental method? Explain. Explain. If so, describe a design you might use.If so, describe a design you might use. If not, describe an alternative design.If not, describe an alternative design.

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