It is called a when members of the population volunteer to take part in the sample.

random sample
self-selected sample
biased sample
convenience sample

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change

1. create a hypothetical story of how a violent conflict arose between two groups. in your story, include examples of how in-group bias, out-group homogeneity, out-group derogation, and scapegoat theory lead toward violence between groups. be sure to label each term where it occurs in your story (20 points)

Atherapist at a free university clinic treats elementary school children with behavior problems who are referred by a social service agency. she is also a doctoral candidate who proposes using data she has and will collect about the children for a case-based research project. describe the type of parental permission which is required in this case?