Variable interval vs Variable ratio - extinction

[HossRyams]

To me, it would make sense that variable interval would be more resistant to extinction than variable ratio in terms of not knowing when you will be reinforced, thus consistently presenting the desired response.
However my teacher and a few others insist it is variable ratio and I am willing to accept it but I was just wondering... How/why? LOL. I'm also conflicted because I've done an exam that also says in the solutions that variable interval is the most resistant.
Could someone please explain to me why it is variable ratio?

[Limista]

The learner isn't sure after how many correct responses they will be reinforced, so they keep on producing the desired responses.

For example, suppose you're gambling at a roulette or poker machine. You keep thinking "After this one, I'm definitely going to win a fortune." You press the button, but you don't get any money. So you think, "Fine, let me try once more. This one's going to be it, I can feel it!" You press the button, and end up losing money. So basically, you know you're going to be reinforced, but you don't know after how many correct responses you'll be reinforced, so you keep on gambling.

Therefore, variable ratio is the most resistant to extinction, followed by fixed ratio and then variable interval and then fixed interval.

[Felicity Wishes]

My teacher just told me that variable interval is the most resistant.  So confused.

[RTandon]

My teacher just told me that variable interval is the most resistant.  So confused.

She told me yesterday that variable ratio is the most resistant..?

[Felicity Wishes]

My teacher just told me that variable interval is the most resistant.  So confused.

She told me yesterday that variable ratio is the most resistant..?

...


I can ask her again if you want.

[RTandon]

My teacher just told me that variable interval is the most resistant.  So confused.

She told me yesterday that variable ratio is the most resistant..?

...
(Image removed from quote.)

I can ask her again if you want.

Yes pleaseeee!

[Felicity Wishes]

My teacher just told me that variable interval is the most resistant.  So confused.

She told me yesterday that variable ratio is the most resistant..?

...
(Image removed from quote.)

I can ask her again if you want.

Yes pleaseeee!

Okay! I'm mentioning you in my email though!

[HiddenUser]

I was told Variable Ratio in a lecture.

[Felicity Wishes]

I was told Variable Ratio in a lecture.

You're right. My teacher made a mistake. 

[vashappenin]

Wait so variable ratio is the most resistant to extinction and has the highest rate of responding?

[Felicity Wishes]

Wait so variable ratio is the most resistant to extinction and has the highest rate of responding?

Yup. 

[vashappenin]

It's all coming together now!! Thanks

[vashappenin]

Ok sorry to be a pain, but one more clarification:
From most to least resistant to extinction:
- Variable ratio
- Variable interval
- Fixed ratio
- Fixed interval
- Continuous schedule

From highest to lowest rate of responding: (where does continuous fall?)
- Variable ratio
- Fixed ratio
- Fixed interval
- Variable interval

Best for acquisition: Continuous schedule
Best for maintenance: Partial reinforcement

Pleeease correct me if I'm wrong!!

[Oliver_123]

This is what Mrs Kendal said on her lecture and she had three studdents get 50 last year for pscyh really knows her stuff

Extinction-
V.R
F.R
V.I
F.I


For establishing response
F.R
V.R
F.I
V.I


But all in all the main thing really is the first ones
Variable ratio is always going to be least resistant to extinction and highest rate or responding

However, dont get caught out continuous is the best in establishing the response initially, ie rat will learn to push leaver quicker if you give it a treat every time rather than after 5

[emiinaaa]

Can anyone explain this to me:
(It's from STAV 2011)

Question 16
Tam punishes her cat's scratching of the sofa on a variable-ratio schedule.
Which of the following is least likely?
A. The frequency of the cat's undesirable behaviour will decrease.
B. The frequency of the cat's undesirable behaviour will increase.
C. The cat will become frightened whenever Tam comes near.
D. The cat will stop scratching the sofa but will start to scratch the carpet.

The answer is A.