Mid year exam assistance thread

[ilovesuck]

can someone provide clear definitions of both placebo effect and experimenter effect?
i dont know if mine are 100% correct...
 :smitten:

[jess3254]

(h) ESB
Advantage; can determine what tissue is dead or alive (whilst operating) and can determine what part of the cortex is responsible for the action that it inhibits or activates.
Disadvantage; invasive as it requires the removal of the skull

Another disadvantage of ESB:
-It is difficult to generalise any data collected from ESB to the population as ESB it is not performed on 'healthy' brains, and has only ever been performed on individuals with brain abnormalities (eg. epilepsy and brain tumours.)

Also, fMRI

Advantages:
+Provides detailed images of the functioning brain
+Takes pictures in rapid succession

Disadvantages:
-Very expensive to run

[Nick]

Placebo effect- occurs when a participant's response (dependant variable) is influenced by their expectancy of how they should behave and not as a result of the independant variable (the procedure which has been administered by the researcher).

Experimenter effect- occurs when the expectations or treatment of the data by the experimenter may affect the dependant variable. This can result in biased experimental results.

[Hughie]

does anyone feel bored? i would have done 15 or so practise exams and it's gettng very tedious now. BRING ON THE EXAM!!!!

[Nick]

does anyone feel bored? i would have done 15 or so practise exams and it's gettng very tedious now. BRING ON THE EXAM!!!!

15? Gosh that's a fair effort! How have you gone on them?

[daniel99]

I think i have done about 10-15. Just want the exam to come and have all the questions that i know on it!!!!!!

[Hughie]

does anyone feel bored? i would have done 15 or so practise exams and it's gettng very tedious now. BRING ON THE EXAM!!!!

15? Gosh that's a fair effort! How have you gone on them?

forgetting 2 stupid STAV exams (05,07) i'm averaging 87ish/90. 

[daniel99]

lol STAV..............................................

[moshi]

i've got a question: is there a difference between selective and focused attention?
at the lecture that i went to, the lecturer said that there was no difference (she's a vcaa examiner), but on the insight 2006 exam that i just did, one of the multiple choice solutions says:
'divided, focused', whilst the other alternative that i've narrowed it down to is 'divided, selective'
and it's definitely out of those alternatives

[Nick]

As far as I am aware, there is no difference. "Focused selective attention" involves attending to some stimuli while ignoring other stimuli whereas "divided attention" refers to the ability of a person to distribute attention and complete two or more tasks at the same time.

What was the insight question?

[daniel99]

Focused and selective are the same on the continuum of consciousness that i have.

[Nick]

The term "focused" is simply just a word that is used to describe selective attention.

[Hughie]

just basic english eh?
i'm a bit bored lol so here's a multi for you guys to enjoy-its not very hard lol

In regards to the relationship between arousal and performance
A.   It can best be described by a U curve
B.   The optimum level of arousal of a simple task is low
C.   The optimum level of a complex task is high
D.   It can best be described by an inverted U curve

[daniel99]

arrrrrrrr D?

[Nick]

Yeah it's D. It can be described using the Yerkes-Dodson law, which is illustrated by an inverted U shaped curve.