Psych U4 Q's Thread!

[REBORN]

6marks max.

I think they'd have to make it at least 4.

I'm hoping 6.

[playsimme]

Heh I wouldn't mind if the entire sa was schizophrenia

[playsimme]

Uh does anybody know the key difference between a critical vs sensitive period?

[REBORN]

What exactly is the 'null hypothesis' ?

[Slumdawg]

What exactly is the 'null hypothesis' ?

Something you don't need to worry about until you get to uni

[REBORN]

What exactly is the 'null hypothesis' ?

Something you don't need to worry about until you get to uni

They've never tested it and never will?    ..I used it once to sound more formal haha!

[Slumdawg]

What exactly is the 'null hypothesis' ?

Something you don't need to worry about until you get to uni

They've never tested it and never will?    ..I used it once to sound more formal haha!

Nope, never seen it in any VCAA exam from this decade. But it turns up shitloads at uni, its been a strong concept in half of my subjects this semester!

[playsimme]

Uh does anybody know the key difference between a critical vs sensitive period?

So nobody knows it? .. thanks.

[Moe112]

Uh does anybody know the key difference between a critical vs sensitive period?

Well I think the sensitive period refers to a time when we are best suited to learn something I know it's also called Experience Expectant learning. Critical Period refers to learning that can occur at anytime in the lifespan but requires the experience in order to learn it I think another name for this is Experience Dependent learning.

To sum it up
Sensitive period: Must occur during a specific time frame and we expect to learn it e.g. learning to speak in native language
Critical Period: Can occur at any point in life and the experience is crucial to learning it e.g. learning to write in native language

But maybe wait for a second opinion .

[buzzwith]

Does Systematic desensitisation need to be conducted by a 'skilled mental health professional'?

[REBORN]

IMO yes. I don't know for sure though.

[playsimme]

Uh does anybody know the key difference between a critical vs sensitive period?

Well I think the sensitive period refers to a time when we are best suited to learn something I know it's also called Experience Expectant learning. Critical Period refers to learning that can occur at anytime in the lifespan but requires the experience in order to learn it I think another name for this is Experience Dependent learning.

To sum it up
Sensitive period: Must occur during a specific time frame and we expect to learn it e.g. learning to speak in native language
Critical Period: Can occur at any point in life and the experience is crucial to learning it e.g. learning to write in native language

But maybe wait for a second opinion .

Ello moe
I found out the difference - sensitive periods are those 'windows' of learning due to excessive synaptogenesis and circuit formation.. which is pruned if not used - BUT it still can be learnt later, just harder to learn. So it's experience -expectant learning as the brain is preparing itself
And critical periods are those small narrow oppurtunities for learning something which is reflexive kindof.. like you are either exposed to it or not and if you miss it - it's impossible to relearn e.g. geese looking at their first moving object and seeing their mother

:S I HOPE that was accurate. It's what I gather from the oxford book..

[buzzwith]

Can someone please briefly and simply explain the four types of partial reinforcement.
Thankss!

[Camo]

Can someone please briefly and simply explain the four types of partial reinforcement.
Thankss!

Fixed ratio: reinforcement occurs after a number of trials have occurred.
Fixed interval: reinforcement occurs after a specified amount of time has passed.
Variable ratio: reinforcement occurs after a number of unpredictable trials have taken place, but on average a specified number of trials.
Variable interval: reinforcement occurs for the first response after a changing and unspecified amount of time has passed, but on average after a specified amount of time has passed.

[buzzwith]

Can someone please briefly and simply explain the four types of partial reinforcement.
Thankss!

Fixed ratio: reinforcement occurs after a number of trials have occurred.
Fixed interval: reinforcement occurs after a specified amount of time has passed.
Variable ratio: reinforcement occurs after a number of unpredictable trials have taken place, but on average a specified number of trials.
Variable interval: reinforcement occurs for the first response after a changing and unspecified amount of time has passed, but on average after a specified amount of time has passed.

Thankss !!