Confederates who were dressed either conservatively or in counterculture garb approached either "straight" or "hip" college students and asked for change to make a phone call. results of this experiment confirmed a bias in .

Results of this experiment confirmed a "similarity" bias in helping.


Similarity bias happens when we select individuals that are more like us, rather than individuals who seem more extraordinary. A "similarity bias" comes about when people will probably copy social models that are seen as being like the individual, in light of particular attributes. 

The correct answer is similarity bias. 

Similarity bias refers to the phenomenon where we express a preference or show preferential treatment towards something or someone who is similar to us, rather than something or someone who is different from us. Results from this experiment indicated that "straight" or conservatively dressed confederates were more likely to be given change by college students who were dressed similarly. Similarly, "hip" confederates were more likely to be given change by similarly dressed college students, demonstrating the similarity bias. 

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.