Objective Structured Practical Examination
(OSPE)
Sandeep Kaushal
Associate Professor,
Department of Pharmacology,
Dayanand Medical College & Hospital,
Ludhiana, Punjab.
Objectives
At the end of the session, the participants must be able to understand the
Purpose
Criteria
Steps for preparing question check list
Content
Introduction
Components of OSPE
Formulation of OSPE
Group task
OSPE
Instrument to assess skills in laboratory
(practical) exercises.
OSPE
Adaptation of OSCE
(Objective Structured Clinical Examination)
• Experiment performed
• Controlled manner
• No interaction with examiner
Criteria
Uniform for all candidates
Assessment of all objectives
Score importance
Formulating OSPE exercise-1
Considerations before conducting sessions Objective Language Standardization
- Steps to be evaluated (number & content) - Time required to answer
Formulating OSPE exercise-2
Assessment of
• Theoretical concept
• Psychomotor skill
• Observation
• Interpretation
Formulating OSPE exercise-3
Supplementation of question with
Graph Diagram
Chart Table
Specimen Animal
Normal subject Patient
Formulating OSPE exercise-4
Predetermined checklist • Material required • Instructions to technical staff• Key containing
- model answers- marks distribution
• Steps to be evaluated
Check list
1. Steps in sequence
2. Break into small steps
3. Outcome INDEPENDENT of previous steps
4. Marks importance
5. Validation by test runs
(PG residents/Junior teachers/Self)
6. Open to suggestions
Steps: Practice Session
1. Brief the students/ evaluators.2. Distribute sheet containing OSPE to
- Students: Roll no, Time, Max. score
- Evaluators: Check list, Max. score, Roll no3. No. of evaluators per station = 2.4. No. of students per station = 1.5. Move in one direction (ring of bell)
Instructions for students
1. Display Roll no prominently.2. Number of stations = n 3. Proceed in one direction4. Time allotted = ‘t’ min (each station)5. Start & end of time (ring of bell) 6. Clear instructions given at each station7. No interaction with examiners8. No negative marking
Examples
Spotting Rabbit eye Rothera’s test Guinea pig ileum RBC count PBF examination Urine for sugar
Spotting-1
Objective :
To test theoretical concept about
1. Iatrogenic problem with use of Drug A
2. Emergency use of Drug B
3. Site of action of Drug C
4. Major contraindication to the use of Drug D
5. Transport of substance affected by Drug E
Spotting-2
Question : 1. Name one MAJOR iatrogenic problem produced by
the use of this drug [Drug A]2. Name the MOST IMPORTANT emergency use of this
specific PREPARATION [Drug B]3. Name one MAJOR enzyme inhibited by this drug
[Drug C]4. Name one MAJOR contraindication for the use of this
drug [Drug D]5. The transport of which substance is affected by this
drug [Drug E]
Spotting-3
Requirements : Question Well phrased, validated, unambiguous Clearly typed, Font 40+, Laminated/ FreshDrug A. Halothane D. Primaquin B. Diazepam E. Lansoprazole C. Acarbose Stop watchBell Numbered answer sheet
Spotting-4
Steps : 1. Instructions to laboratory staff2. Arrange questions in a sequence3. One spot per seat4. Supplement with suitable sample5. Appoint a time keeper 6. Instructions to students 7. Key for the examiner
Spotting-5
Instructions to students:1. Prominently display roll no.2. Number of stations = 5 3. Proceed in clockwise manner4. Time allotted = ‘1’ min (each station)5. Start & end of time (ring of bell) 6. Clear instructions at each station7. Write answers on the sheet provided8. No negative marking
Spotting-6
Instructions to laboratory staff/assistant:1. Check stop-watch, bell 2. Number of stations = 53. Place questions with spots as per list 4. Students to proceed clockwise 5. Time allotted = ‘1’ min exactly (each station)6. Start & end of time (ring of bell) 7. No talking/ gestures allowed
Spotting-7
Key for Examiner: Total spots = 5 Max. Marks = 5 (1 per spot) Spot Answer
1. Malignant hyperthermia2. Status epilepticus3. -glucosidase 4. G-6-P deficiency5. Protons
Spotting-8
Evaluation sheet for Examiner: Total spots = 5 Max. Marks = 5 (1 per spot) Roll No Spot Answer 1 2 3 41. Malignant hyperthermia Y/N Y/N Y/N Y/N 2. Status epilepticus Y/N Y/N Y/N Y/N3. -glucosidase Y/N Y/N Y/N Y/N4. G-6-P deficiency Y/N Y/N Y/N Y/N 5. Protons Y/N Y/N Y/N Y/N
TOTAL MARKS
Spotting-9
Answer sheetRoll No:………… Max. Marks:5 (1 per spot) Time:5minSpot Answer
1
2
3
4
5
Calculation-1
Objective :
To test calculation skill of the candidate
Question:
Calculate the amount of potassium permanganate required to prepare 50 ml of 2% potassium permanganate.
Calculation-2
Calculation:
2% means 20 mg/ ml solution
[1 % 10 mg/ ml]
Hence 50 ml of 2 % solution requires solute=
50 ml *20 mg/ ml
=1000 mg
Calculation-3
Answer:
1000 mg of potassium permanganate
Inference-1
Objective :
To test inferential skill of the candidate based on experimental data
Inference-2
Question:
Comment on the nature of ocular preparation based on the following observational data obtained by its use in the right eye of rabbit.
Time Pupil Light reflex conjunctival corneal [Min] size [mm] blood vessel reflex
0 5 + No change + 5 6 + No change +10 7 + No change +20 9 - No change +
Inference-3
Answer:
Mydriatic with cycloplegia
[Anti-muscarinic drug]
OSPE - Advantages
1. Minimum bias 2. Uniform level of assessment3. Large number of skills can be assessed objectively4. Wider sampling-most topics can be covered4. Reliable method of testing5. Tailor made assessment of skills as per importance6. Minimum subjectivity7. Recall bias minimised
OSPE - Disadvantages
1. Standard time duration for all- can’t be /
2. Requires planning
3. Requires validation
4. Requires team work
OSPE
Examinee
Examiner
OSPE
“End result is not important
but methodology is.”
Thanks