In your unit readings, you read about two approaches or models of validity—trinitarian and unitary. In some ways, these two models are competing views of gathering evidence for a test’s validity. In other ways, the two approaches have an overlap of elements.

In your post:

Compare and contrast these two models in terms of how they conceptualize validity.
Identify at least one advantage and disadvantage of each model.
Decide which model appears to be the most valid for determining validity of a test.
Explain your decision in terms of the implications for decision making about a test’s validity.
Be sure to include citations from Guion’s 1980 article, “On Trinitarian Doctrines of Validity,” and Messick’s 1995 article, “Validity of Psychological Assessment: Validation of Inferences From Persons’ Responses and Performances As Scientific Inquiry Into Score Meaning.”

Sample Solution

What social movements would you start to help bring attention to diversity and inequality issues?
How can the outcome of historical and ongoing inequality be dismantled without anyone giving anything up? How are people convinced to give up privilege, power, and resources? How can they be convinced that they have “too much”?

Sample Solution

What are some environmental challenges facing your community?
What are some environmental science issues that might never have solutions?
What are the factors that have led to a lack of resolution?
What are some potential effects of not addressing these concerns?

Sample Solution

Define the key elements and uses of the SELECT query statement, and provide an example of its usage.

Sample Solution