**Core Concept**
The Udai Pareek scale is a tool used to assess the socio-economic status of families in the context of public health. It is a widely used scale in epidemiological studies to categorize families based on their socio-economic status.

**Why the Correct Answer is Right**
The Udai Pareek scale assesses the socio-economic status of families by evaluating various factors such as education, occupation, family size, and amenities available in the house. Income, however, is not a parameter included in the Udai Pareek scale as it is considered a dynamic factor that can fluctuate over time. The scale focuses on more stable indicators of socio-economic status, such as education and occupation.

**Why Each Wrong Option is Incorrect**
**Option A:** Education is actually a parameter included in the Udai Pareek scale, as it is considered an important indicator of socio-economic status.
**Option B:** Family members are also taken into account in the Udai Pareek scale, as family size can be an indicator of socio-economic status.
**Option C:** The Udai Pareek scale does consider the amenities available in the house, such as the presence of electricity, water, and sanitation facilities.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that the Udai Pareek scale is just one of the many tools used to assess socio-economic status, and different scales may include different parameters. Understanding the strengths and limitations of each scale is crucial for accurate epidemiological analysis.

**✓ Correct Answer: D. Income. Income is not a parameter included in the Udai Pareek scale.**