True statement about ‘Imbecile’
**Core Concept**
Historically, the term 'imbecile' was used to describe a person with a mental age between 1 and 7 years, indicating moderate intellectual disability. This categorization was based on the Intelligence Quotient (IQ) score, with imbeciles having an IQ between 26-50.
**Why the Correct Answer is Right**
The term 'imbecile' was used in the past to describe individuals with intellectual disabilities, with imbeciles having a mental age equivalent to a child between 1 and 7 years old. This classification was part of the outdated eugenics movement and was later replaced by more accurate and respectful terminology. The use of the term 'imbecile' has been largely discontinued due to its stigmatizing and pejorative connotations.
**Why Each Wrong Option is Incorrect**
**Option A:** This option does not specify the mental age range associated with the term 'imbecile', making it an incomplete description.
**Option B:** This option describes a person with a mental age equivalent to a child under 1 year, which is closer to the classification of 'idiot' rather than 'imbecile'.
**Option C:** This option describes a person with a mental age equivalent to a child over 7 years, which is closer to the classification of 'moron' rather than 'imbecile'.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that the terms 'imbecile', 'idiot', and 'moron' are outdated and stigmatizing, and should not be used in clinical practice or communication. Instead, use respectful and evidence-based language to describe individuals with intellectual disabilities.
**Correct Answer:** D.