Multiple-Choice Questions or Objective Type Questions on Mental Retardation [PDF Included]

Hello readers! Here, I am going to display some important Multiple-Choice Questions on Mental Retardation. These MCQ Questions or objective-type questions are taken from the syllabus of the diploma course on Mental Health, Advance Counselling, and Psychotherapy.

Further, you may download this MCQ sheet in PDF format by clicking on the PDF Downloadable button that is located at the bottom of this page.

Now without wasting your time, let us start the Multiple-Choice Questions or Objective Type Questions on Mental Retardation.

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MCQ Questions on Mental Retardation

  • Mental Retardation starts when I.Q falls below
  1. 80
  2. 70
  3. 50
  4. 30

Ans: (2)

  • Each cell of the human body contains __numbers of chromosomes.
  1. 44
  2. 45
  3. 46
  4. 47

Ans: (3)

  • In the case of down’s syndrome, the number of chromosomes in each cell is:
  1. 44
  2. 45
  3. 46
  4. 47

Ans: (4)

  • Mental sub-normality is also termed as:
  1. Mental deficiency
  2. Mental retardation
  3. Intellectual deficiency
  4. All of the above

Ans: (4)

  • State true or false: Mental retardation is not a mental illness.
  1. True
  2. False

Ans: (1)

  • State true or false: Mental retardation can start from any age, even at old age also.
  1. True
  2. False

Ans: (2)

  • The full form of IQ is:
  1. Intelligence quality
  2. Inner quality
  3. Intelligence quotient
  4. None of these

Ans: (3)

  • The relation between Mental retardation and IQ is:
  1. If IQ is high, chances of MR is less.
  2. If IQ is lesser, chances of MR is more severe.
  3. No link between MR and IQ
  4. None of these

Ans: (2)

  • By which of the following psychological test, we can measure the intelligence of children?
  1. Weschler’s intelligence scale
  2. MISIC
  3. Standard progressive metrices
  4. Stanford binet intelligence scale

Ans: (1)

  • If a person’s IQ is 50, then he is:
  1. Normal
  2. Victim of severe MR
  3. Victim of mild MR
  4. Victim of schizophrenia

Ans: (3)

  • Hypothyroidism is caused due to
  1. Lack of adequate availability of Iodine from the mother
  2. Lack of adequate availability of Potasium from the patient
  3. Lack of adequate availability of haemoglobin from the mother
  4. None of these

Ans: (1)

  • The problem of mental retardation is linked with:
  1. Digestion system
  2. Attention
  3. Memory
  4. Intelligence

Ans: (4)

  • Mental age is the measure of the child’s
  1. Mental power
  2. Rate of mental growth
  3. Level of mental maturity
  4. Level of intellectual ability

Ans: (3)

  • Which one of the following is the correct formula for finding out the IQ (where MA-mental age, CA- Chronological age)?
  1. (MA/CA)*100
  2. (CA/MA)*100
  3. (MA+CA)/100
  4. (MA-CA)/100

Ans: (1)

  • A baby with low birth weight may face MR. Below which weight this problem may happen?
  1. Less than 3.5 kg
  2. Less than 3 kg
  3. Less than 2.5 kg
  4. Less than 2 kg

Ans: (4)

  • Which one of the following is the characteristic of a mentally retarded child?
  1. Lack of fluency while speaking
  2. Social incompetency
  3. Normal intellectual functioning
  4. None of the above

Ans: (2)

  • Which one of the following is an example of intellectual disability?
  1. Schizophrenia
  2. Dyslexia
  3. Mental retardation
  4. None of these

Ans: (3)

  • Due to down’s syndrome, which type of children suffer?
  1. Healthy children
  2. Poor children
  3. Feebleminded children
  4. Rich children

Ans: (3)

  • For checking whether there are any mentally retarded children, which test should you do?
  1. Aptitude test
  2. Blood test
  3. Intelligence test
  4. Projective test

Ans: (3)

  • Mental retardation is a phase that can generally start
  1. At the age of 18
  2. Below the age of 18
  3. At old age
  4. At any age

Ans: (2)

  • Phenylketonuria (PKU) causes mental retardation is a
  1. Personality disorder
  2. Psychological disorder
  3. Metabolic disorder
  4. None of these

Ans: (3)

  • In the case of a PKU child, which of the following happens?
  1. There is a lack of the enzyme that converts the amino acids into a product to functioning the body
  2. There 44 numbers of chromosomes instead of 46 in each cell of the PKU child.
  3. There are 47 numbers of chromosomes instead of 46 in each cell of the PKU child.
  4. None of these

Ans: (1)

Short Questions on Mental Retardation

What is Mental retardation? What are its characteristics?

Ans: When mental development is slower / delayed, it is said that he/she is suffering from Mental Retardation (MR).

The characteristics of MR are:

  1. IQ is less than 70
  2. Significant sub-average intellectual functioning
  3. Onset before 18 years of age.

What are the differences between Mental retardation and Mental illness?

Ans: Mental Retardation causes mental development slower/delayed whereas Mental illness causes disturbances in the mental functioning of thinking, acting, feeling, and behaving.

Mental Retardation is present from childhood whereas mental illness can occur at any age.

Name some psychological tests through which IQ is measured.

Ans: Weschlar’s intelligence scale for children, Standard Progressive Matrices, Stanford-Binet Intelligence Scale, MISIC

What are the symptoms of mental retardation?

Ans:  The symptoms of Mental Retardation are:

  1. Behaves like infants
  2. They can’t learn fast like normal people do.
  3. They fail to meet intellectual developmental markers
  4. They are incapable to meet educational demands at school
  5. They have lack of curiosity.

What are the effects of Mental retardation on the family?

Ans: The effects of MR on the family are:

  1. Depression, feeling guilt
  2. Feeling shame or anger
  3. Distress,  negative feeling of rejection
  4. Overindulgence
  5. Social problems
  6. Dissatisfaction about the medical treatments
  7. Marital disharmony

What causes Mental Retardation?

Ans: The main causes of Mental Retardation are:

  1. Down syndrome (when the number of chromosomes become 47 in stead of 46)
  2. Fetal alcohol syndrome (excessive drinking by the mother causes a medical problem in the fetus)
  3. Inherited metabolic disorder
  4. Maternal Rubella Syndrome
  5. Iodine deficiency disorder


Mental Retardation is not a disease, it is the slow growth of mental activities. Maximum patients can be treated at home with proper care and consultation with doctors. It can be cured if it is detected at an early stage. Parents should not ignore if they find delays in any mental activities.

In this article, I have displayed the most important short questions on Mental Retardation. I hope this article-‘Multiple-Choice Questions or Objective Type Questions on Mental Retardation’ will help you in your semester examinations. Best wishes!

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