Psychology Unit 4 Suggested Solutions

[ngRISING]

hmmph. for debriefing i wrote
1)results of the the participant they had consented for
2)the overall results of other participants such as the mean value score, however all confidentiality of participants will not be given out.

think i can get 2 marks for that?

[vexx]

thanks for this.
for Q18 though, is it correct to have the two points for debriefing:
* clear up any misunderstandings of the experiment and reveal true aim/nature of experiment if necessary.
* ensure no psychological or physiological harm has been done to participants, and remove any negative side effects if necessary as they must leave in the same physiological and psychological state they arrived in.

Yes that's fine, I'd imagine that's an open ended question with lots of potential solutions.

awesome:)
also, for the uncontrolled variable,
would it be alright to say
'the cartoons the children watched in the control group'
and justify it because they could choose to watch programs also encouraging literacy in children. making the control group incomparable to the experimental group, effecting the accuracy of the results.
i think i worded that better in exam, but is this ok?

[ngRISING]

16) Maturation. There is a potential over the four weeks of the programme that students may have improved their reading naturally without any intervention.
(There's many other types of things that could influence the experiment. You just have to justify it.

uncontrolled variable
the literacy skill of the participants

Possible effect on results?
the literacy skill of certains students may have been already good. thus they will score better.

[Glockmeister]

hmmph. for debriefing i wrote
1)results of the the participant they had consented for
2)the overall results of other participants such as the mean value score, however all confidentiality of participants will not be given out.

think i can get 2 marks for that?

You'd may get one mark for that. The first point is I suppose could be accepted. The second one is definitely a no, because there is a good chance at the debriefing (at least the experiments I've been a participant with), that the overall results haven't actually been collated yet, because they're still testing people. You can get the results afterwards by emailing the researchers, but I wouldn't really consider this as part of the debriefing stage.

[Glockmeister]

thanks for this.
for Q18 though, is it correct to have the two points for debriefing:
* clear up any misunderstandings of the experiment and reveal true aim/nature of experiment if necessary.
* ensure no psychological or physiological harm has been done to participants, and remove any negative side effects if necessary as they must leave in the same physiological and psychological state they arrived in.

Yes that's fine, I'd imagine that's an open ended question with lots of potential solutions.

awesome:)
also, for the uncontrolled variable,
would it be alright to say
'the cartoons the children watched in the control group'
and justify it because they could choose to watch programs also encouraging literacy in children. making the control group incomparable to the experimental group, effecting the accuracy of the results.
i think i worded that better in exam, but is this ok?

Yep, that's actually a pretty good one (and probably better than mine, tbh ).

16) Maturation. There is a potential over the four weeks of the programme that students may have improved their reading naturally without any intervention.
(There's many other types of things that could influence the experiment. You just have to justify it.

uncontrolled variable
the literacy skill of the participants

Possible effect on results?
the literacy skill of certains students may have been already good. thus they will score better.

Initially I thought this would be ok, but just think about this for a second. Haven't we already controlled this by the matching pairs design?

[Dark Templar]

I said experimenter effects (self-fulfilling-prophecy). Is that right?

[bloodboy]

for the confounding, i put like the teachers who did the test may have used their expectations to unconsciously alter the results or even consciously.. you reckon that'll be fine?

[Blitz]

14) A level of significance of 0.05 indicates that, assuming the null hypothesis is true, that the results obtained represents an extreme and unlikely 5% value to be obtained

I can't remember the exact wording of that question, but I thought it meant what does a significance level of 0.05 mean in general terms, as in 'it is only deemed statistically significant, that is, results are said to be unlikely to be due to chance rather than the independent variable, if fewer than 5 in 100 trials are said to be due to chance.' Did anyone else interpret it this way, or in regards to the actual experiment?

[EMILLY]

yea i did it that way..
i said that for the results to be considered statisticaly significant then only 5% or less of the results can occur by chance..
i didnt mae any reference to the actualy experiment :s

[amy-763]

What would be the mark range needed for just an 'A' on the exam?
75-? or something? I have no idea!
Does anyone have a rough idea?  

[vexx]

yea i did it that way..
i said that for the results to be considered statisticaly significant then only 5% or less of the results can occur by chance..
i didnt mae any reference to the actualy experiment :s

i just said the answer was, 'a statistical significance of 0.05 means it is a 5% probability the results are due to chance.' would this not be right then?

[EMILLY]

well thats roughly what i did lol...so umm I HOPE SO

[ayaz]

Outline one uncontrolled variable that could potentially confound the results and describe how it could affect
the results.
for this question i said that as the teacher was obtained the results she may have unintetinally favoured some students causing ineffictive results would this be right

[madi1234]

So is question 11 B or A.. I really think its B....
Isnt 37 D?
and 43 is D?

They are the only three i got wrong compared with your answers

[bloodboy]

37 isnt D because it said 'In operant conditioning'