Question

Public Health:

What are the two ways to determine if the outcomes chosen for measurement are actually relevant?

Answer 1

Measurement means to ensure the proper Quality & Quantity Phenomenon Of a Particular Tool..

There are Two Ways that are used to determine the Relevency Of the Measurement..They are_

• Validity
• Reliability

1) Validity- Validity of a Particular Research tool means the appropriateness, usefulness, Meaningfullness Measuring Of that Research Tool..

The different type Of Validity are discussed below-

a) Face Validity- It means the Overall look of a Particular tool to measure it's Phenomenon..

b) Content Validity- It means the Coverage Of the Content Portion which to be measured..

c) Criterion Validity- It means the Valied Relationship with the Purpose of measurement with the help of Some external Criteria..

Criterion Validity is further devided into Two Types-

• Predictive Validity- This Validity focuses on the External Judgement Or Prediction..
• Concurrent Validity- This Validity focuse on the degree of Measures..

d) Construct Validity- This type of validity is used to assess or Measure the Quality Of the particular tool..

2) Reliability   - Reliability is defined as a possible way to checkout the Consistency

Of a Particular Tool ..& Thus It helps to determine the Relevency Of the Measurement...