Refer to the information provided in Figure 12.1 below to answer the questions that follow. 
Figure 12.1
-Refer to Figure 12.1. An aggregate demand shift from AD2 to AD1 can be caused by
Definitions:
Experimenter Attributes
Characteristics or qualities of the researcher that may inadvertently affect the participants' behavior or responses during a study.
Differential Responses
Variations in responses to stimuli or conditions among different groups or individuals, observed in experiments or surveys.
Double Blind
A study or clinical trial design where neither the participants nor the experimenters know who is receiving a particular treatment, thereby preventing bias.
Experiential Memory
A type of memory that involves recollection of personal experiences, emotions, and the sensory perceptions associated with them.
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