Validity: The Test Doth Purport Too Much, Methinks

Validity: The Test Doth Purport Too Much, MethinksResourcesMicrosoft Word icon Attributes and Evaluation of Discussion Contributions. PDF icon Professional Communications and Writing Guide.

In your unit studies, 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.

For this discussion: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.”

You are encourage to consider the List of Assessment Tools at the end of this docment described in the optional articles listed. The Distinguished criterion is “Describes the application of specific symptom checklists appropriate to each case with clear connection to the differential diagnosis”.

Systemic Assessments: Case of Jenny

You are encouraged to select an assessment described in Hamilton and Carr (2016) assuming that Jenny presents for treatment with her mother. The Distinguished criterion is “Describe the application of specific assessments relevant to marriage, couple, and family counseling appropriate to each case supported by scholarly literature”.

DSM and ICD Diagnosis: Case of Jenny

Address the Distinguished criterion, “Applies the current DSM and ICD to the diagnosis of a focus client seen in family counseling and an additional family member, and providing support for diagnostic choices”.   List the code for both the current DSM and ICD. A chart listing ICD codes that correspond to DSM can be found at: https://www.psychiatry.org. After you list the diagnosis and applicable V or Z codes that provide a context, explain how you came to decide the diagnosis is appropriate in a paragraph.