Explanation on a couple of prac exam questions

[studying_hard]

Can't remember which one it was but help will be appreciated

Research into the effects of ageing on memory has shown
A processing speed in STM is reduced due to increased efficiency of the nervous system.
B processing speed in LTM is reduced due to reduced efficiency of the nervous system.
C there is no difference in processing speed for different types of task.
D complex tasks such as manipulating various types of information is often more difficult
for elderly people.

Which schedule of reinforcement results in the slowest extinction of a learned behaviour?
A fixed ratio
B variable ratio
C variable interval
D fixed interval
Thanks

[matt123]

Can't remember which one it was but help will be appreciated

Research into the effects of ageing on memory has shown
A processing speed in STM is reduced due to increased efficiency of the nervous system.
B processing speed in LTM is reduced due to reduced efficiency of the nervous system.
C there is no difference in processing speed for different types of task.
D complex tasks such as manipulating various types of information is often more difficult
for elderly people.

Which schedule of reinforcement results in the slowest extinction of a learned behaviour?
A fixed ratio
B variable ratio
C variable interval
D fixed interval
Thanks

hey man
these actually seem to be difficult questions.

for the first one
i would lean towards answer D.
since , complex tasks using the brain would possibly be less efficent as with ageing , as the central nervous system slows down.

however im not 100% sure
would actually be good to get some other peoples imput.


question 2.
Im pretty sure its variable interval.
for e.g fishing
when you go fishing. ... your gonna keep fishing all day .. even though you know that it might not happen.
the response is quite resistant to extinction.

some 1 please correct me if im wrong on anything.
cheers.

[studying_hard]

Can't remember which one it was but help will be appreciated

Research into the effects of ageing on memory has shown
A processing speed in STM is reduced due to increased efficiency of the nervous system.
B processing speed in LTM is reduced due to reduced efficiency of the nervous system.
C there is no difference in processing speed for different types of task.
D complex tasks such as manipulating various types of information is often more difficult
for elderly people.

Which schedule of reinforcement results in the slowest extinction of a learned behaviour?
A fixed ratio
B variable ratio
C variable interval
D fixed interval
Thanks

hey man
these actually seem to be difficult questions.

for the first one
i would lean towards answer D.
since , complex tasks using the brain would possibly be less efficent as with ageing , as the central nervous system slows down.

however im not 100% sure
would actually be good to get some other peoples imput.


question 2.
Im pretty sure its variable interval.
for e.g fishing
when you go fishing. ... your gonna keep fishing all day .. even though you know that it might not happen.
the response is quite resistant to extinction.

some 1 please correct me if im wrong on anything.
cheers.

i checked they are from tssm 2008. i got D for the first one but it is B. For the seccond one I got B but its C. Although for Q2 it was 50/50 to which way I would go

[matt123]

Can't remember which one it was but help will be appreciated

Research into the effects of ageing on memory has shown
A processing speed in STM is reduced due to increased efficiency of the nervous system.
B processing speed in LTM is reduced due to reduced efficiency of the nervous system.
C there is no difference in processing speed for different types of task.
D complex tasks such as manipulating various types of information is often more difficult
for elderly people.

Which schedule of reinforcement results in the slowest extinction of a learned behaviour?
A fixed ratio
B variable ratio
C variable interval
D fixed interval
Thanks

hey man
these actually seem to be difficult questions.

for the first one
i would lean towards answer D.
since , complex tasks using the brain would possibly be less efficent as with ageing , as the central nervous system slows down.

however im not 100% sure
would actually be good to get some other peoples imput.


question 2.
Im pretty sure its variable interval.
for e.g fishing
when you go fishing. ... your gonna keep fishing all day .. even though you know that it might not happen.
the response is quite resistant to extinction.

some 1 please correct me if im wrong on anything.
cheers.

i checked they are from tssm 2008. i got D for the first one but it is B. For the seccond one I got B but its C. Although for Q2 it was 50/50 to which way I would go

ok , well i was wrong with q1.
but was right with 2.

ok lemme try explain my theory on the answers a little more .

question1.
the slowing of the nervous system means that tasks cannot be performed as well.
however , usually memory loss in older people is the memory loss in episodic memories.
episodic memories are apart of long term memory.

the retrieval process is slowed down .. due to the declining nervous system
HOWEVER
i still would like some 1 to tell me why the answer cannot be D.... it seems logical to me?


as for question2.
its in the gravias textbook page 470
there is a graph which shows rates of learning and in turn , extinction rate.

the various interval is the slowest .. but it has the HIGHEST resistance to extinction

[studying_hard]

Can't remember which one it was but help will be appreciated

Research into the effects of ageing on memory has shown
A processing speed in STM is reduced due to increased efficiency of the nervous system.
B processing speed in LTM is reduced due to reduced efficiency of the nervous system.
C there is no difference in processing speed for different types of task.
D complex tasks such as manipulating various types of information is often more difficult
for elderly people.

Which schedule of reinforcement results in the slowest extinction of a learned behaviour?
A fixed ratio
B variable ratio
C variable interval
D fixed interval
Thanks

hey man
these actually seem to be difficult questions.

for the first one
i would lean towards answer D.
since , complex tasks using the brain would possibly be less efficent as with ageing , as the central nervous system slows down.

however im not 100% sure
would actually be good to get some other peoples imput.


question 2.
Im pretty sure its variable interval.
for e.g fishing
when you go fishing. ... your gonna keep fishing all day .. even though you know that it might not happen.
the response is quite resistant to extinction.

some 1 please correct me if im wrong on anything.
cheers.

i checked they are from tssm 2008. i got D for the first one but it is B. For the seccond one I got B but its C. Although for Q2 it was 50/50 to which way I would go

ok , well i was wrong with q1.
but was right with 2.

ok lemme try explain my theory on the answers a little more .

question1.
the slowing of the nervous system means that tasks cannot be performed as well.
however , usually memory loss in older people is the memory loss in episodic memories.
episodic memories are apart of long term memory.

the retrieval process is slowed down .. due to the declining nervous system
HOWEVER
i still would like some 1 to tell me why the answer cannot be D.... it seems logical to me?


as for question2.
its in the gravias textbook page 470
there is a graph which shows rates of learning and in turn , extinction rate.

the various interval is the slowest .. but it has the HIGHEST resistance to extinction

kk thanks. I understand Q2 now I think. But I though I was correct with Q1. I have in my notes that the speed of processing declines in STM not LTM so I though d) was logical. It is definatly not A or C but I'm with you in not understanding why D isn't correct

[matt123]

ill ask my teacher tomorrow and let you know what he says btw.



hope that helps ma friend

[studying_hard]

ill ask my teacher tomorrow and let you know what he says btw.



hope that helps ma friend

thnaks. is your teacher a good one? private school?

[Spreadbury]

regarding question 1... does LTM actually process information? I thought it was just stored it. I also thought the first one was D as that's in the grivas textbook

[matt123]

regarding question 1... does LTM actually process information? I thought it was just stored it. I also thought the first one was D as that's in the grivas textbook

yeah your right
its not long term memory which process information
its for storage

working memory is for manipulation ( processing) of information.

so i cannot see why D is wrong and B is right?

[Slumdawg]

I agree that question 1 should be D. But for question 2 I've done a bit of research and it's made it a bit more confusing:

This website says "variable ratio is the most resistant to extinction"

http://www.allsands.com/health/alternative/reinforcements_xbz_gn.htm

And wikipedia says "The variable ratio schedule produces both the highest rate of responding and the greatest resistance to extinction (for example, the behavior of gamblers at slot machines)"

http://en.wikipedia.org/wiki/Reinforcement (scroll down to the effects of different types of simple schedules)

But it might be that variable interval is just the slowest to extinguish learnt behaviour? I'll ask my teacher (have to wait till she gets back on monday though) cos there are so many different opinions. It's hard to figure out what vcaa actually wants. Matt can you ask your teacher too cos they seem to know what they're doing.

[Spreadbury]

I thought variable interval had the highest resistance to extinction as it's less predictable than a variable ratio schedule.

also I don't think the gambling example should be used as a reason why the extinction is longer. i'm sure there are plenty of variable ratio schedules that would be quite easily extinguished (don't ask me for an example, it's too late at night )

[matt123]

I thought variable interval had the highest resistance to extinction as it's less predictable than a variable ratio schedule.

also I don't think the gambling example should be used as a reason why the extinction is longer. i'm sure there are plenty of variable ratio schedules that would be quite easily extinguished (don't ask me for an example, it's too late at night )

i do agree with you.
im pretty sure that variable intervel has the highest resistance to extinction

p.s gambling slot macchines arnt only variable ratio
they are a combination of variable ratio and interval.

think about it
you might get a jackpot after a specific number of attempts
but hundreds of players might go on it at different times of the day
at the same time
it could be at a variable time.
therefore
i think it would be a combination of both.
or else mathematicians all over the world could predict approx after how many attempts it will happen .. or on average how many attempts.
however most mathematicians these days with the new slots have trouble

... back onto topic

im fairly sure variable interval has the highest resistance to extinction.

[Slumdawg]

I thought variable interval had the highest resistance to extinction as it's less predictable than a variable ratio schedule.

also I don't think the gambling example should be used as a reason why the extinction is longer. i'm sure there are plenty of variable ratio schedules that would be quite easily extinguished (don't ask me for an example, it's too late at night )

I didn't choose that example it's straight off wiki.. It's confusing cos different sources say different things..Have to just ask the assessors, they're probably the only ones who could give a straight answer. There's a big possibility it's variable interval, I've seen plenty of sources say this is the least resistant too,  but I don't wanna ignore the information saying variable ratio could be too.. Can somebody ask their teacher? Mine isn't gonna be at school till late next week and I don't wanna wait that long.

[matt123]

I thought variable interval had the highest resistance to extinction as it's less predictable than a variable ratio schedule.

also I don't think the gambling example should be used as a reason why the extinction is longer. i'm sure there are plenty of variable ratio schedules that would be quite easily extinguished (don't ask me for an example, it's too late at night )

I didn't choose that example it's straight off wiki.. It's confusing cos different sources say different things..Have to just ask the assessors, they're probably the only ones who could give a straight answer. There's a big possibility it's variable interval, I've seen plenty of sources say this is the least resistant too,  but I don't wanna ignore the information saying variable ratio could be too.. Can somebody ask their teacher? Mine isn't gonna be at school till late next week and I don't wanna wait that long.

yeah mine will be there tommorow or the day after
ill ask

[Slumdawg]

I thought variable interval had the highest resistance to extinction as it's less predictable than a variable ratio schedule.

also I don't think the gambling example should be used as a reason why the extinction is longer. i'm sure there are plenty of variable ratio schedules that would be quite easily extinguished (don't ask me for an example, it's too late at night )

I didn't choose that example it's straight off wiki.. It's confusing cos different sources say different things..Have to just ask the assessors, they're probably the only ones who could give a straight answer. There's a big possibility it's variable interval, I've seen plenty of sources say this is the least resistant too,  but I don't wanna ignore the information saying variable ratio could be too.. Can somebody ask their teacher? Mine isn't gonna be at school till late next week and I don't wanna wait that long.

yeah mine will be there tommorow or the day after
ill ask

Cheers. Just my luck eh? My only good teacher has to leave for 2 weeks just before exams, in the subject which I have the most questions for. Thank god for vn and other people's teachers who are reliable..