Table 2 Cranial skills’ evaluation

S. No

Domains

Burr-hole 1st attempt

Burr-hole 3rd attempt

P-value

Cranioto-my 1st attempt

Cranioto-my 3rd attempt

P -value

 1

Respect for tissue

3

4

< 0.001

3

4

< 0.001

 2

Time and motion

3

4

< 0.001

3

4

< 0.001

 3

Instrument handling

3

4

< 0.001

3

4

< 0.001

 4

Knowledge of instruments

3

4

< 0.001

3

4

< 0.001

 5

Use of assistants

4

4

0.017

3

4

< 0.001

 6

Flow of operation and forward planning

3.5

4

< 0.001

3

4

< 0.001

 7

Knowledge of specific procedure

3

4

< 0.001

3

4

< 0.001

Spinal skills’ evaluation

Domains

Lamin- ectomy 1st attempt

Lamin- ectomy 3rd attempt

P-value

Lumbar drain 1st attempt

Lumbar drain 3^rd attempt

P-value

 8

Respect for tissue

2

4

< 0.001

2

4

< 0.001

 9

Time and motion

2

4

< 0.001

2

4

< 0.001

 10

Instrument handling

2

4

< 0.001

2

4

< 0.001

 11

Knowledge of instruments

3

4

< 0.001

2

4

< 0.001

 12

Use of assistants

2.5

3.5

< 0.001

2

3

< 0.001

 13

Flow of operation and forward planning

2

4

< 0.001

2

4

< 0.001

 14

Knowledge of specific procedure

2

4

< 0.001

2

4

< 0.001