Trouble with Psych exam questions!

[sisqo1111]

Feel free to post any questions that you may have in regards to the psych exam here. I'm sure i will be able to help as well as others on the forum (jessie0  )
So any worries you may have, post away!

[khalil]

Which one of the following statements about short-term memory is true?
A. Simple rehearsal is the best method for guaranteeing that material will transfer from short-term memory to long-term memory.
B. The capacity of short-term memory can be increased by chunking and elaborative rehearsal.
C. The capacity of short-term memory for individual letters is fixed at a certain number.
D. Most material in sensory memory makes its way into short-term memory.

answer is B; the problem is evident

[sisqo1111]

B is the most correct answer. no other alternative is correct. thus, it must be B. refer to the other thread where Eriny explains about the two methods of increasing capacity of stm.

edit: extracted from Eriny's post "Capacity as in the time information can stay in STM for rehearsal, chunking increases the capacity for amount of information. They're two different capacity types, I suppose. Sorry, that was pretty ambiguous."

[khalil]

ok thanks what about this one:
why do researches use a hypothesis when conducting a study?

[sisqo1111]

umm not quite sure but ill give it a go
They use a hypothesis as they are testing a theory/phenomena between the affects of the DV and the IV. If the theory is supported they can then state that their hypothesis was correct and reject the null hypothesis.

okay, i dont think that made much sense. is this a certain question from somewhere? or did u just make it up?

[khalil]

no its actually from the grivas book....ive got a feeling it will pop up in the exam

[sisqo1111]

oh lol really? umms we could wait for Eriny to pop online or jessie0 to see if they can answer it.

[hilal]

is their a way to trigger our memory when it comes to picking out what the CR, UCR, CS and all that is?

[sisqo1111]

what exactly do u mean? i look at it this way: First i see what the person/animal is doing for the CR. what makes them do this is the UCS which is paired with the CS. so then the organism will respond to the cs only without the ucs

[Nick]

That question arose last year and our teacher came up with a pretty complicated/confusing response as to why it was the most correct.

In regard to the elaborative rehearsal element of the statement, I think it has something to do with how if we are able to draw upon information from our LTM (information already stored in memory) we are able to break the information down into meaningful chunks which is subsequently using our LTM to increase capacity of STM. Obviously through using the technique of chunking, we are drawing upon information from our LTM to assist with this. Without our LTM, we would have to remember every single element of a number or piece of information.

[sisqo1111]

what about the hypothesis question? that got me stumped

[Nick]

Researchers use a hypothesis because:
----> It forms the basis of any psychological investigation
----> It gives an investigation direction and or meaning to the researcher
-----> It enables an independent and dependent variable to be generated
-----> Elements of a study of interest can be validated or rejected through utilising a hypothesis

[sisqo1111]

so much more clearer than my post. Thanks Nick!

[Nick]

No worries at all

[khalil]

wow those are great answers
definitely copying them in my notes