reasearch methods question

[zacman_11]

did it use random sampling... i put no, but my teacher rekons for some reason it is yes... he was talking about chance generated from a computer to pick which group the participants went in??  or something like that lol. not to sure dont remember it that well....  some help please

[Glockmeister]

That's not random sampling, that's random allocation *facepalm*

no the research methods question did not use random sampling.

[ngRISING]

it more likely used convenience sampling,
First 100 participants who returned the allocation form, what if the first 100 participants lived CBD, because they live in the CBD and the headquaters of this place was CBD, faster delivery times on the consent forms. it can't be generalised to someone in mildura,frankston,sandringham,sunshine because its not a representative sample of everyone. i think my explanations thinking deeper into that Q lol! some assumptions were made too.

To test this program, Doctor Fraser sent a letter to all parents/guardians of Grade 4 children in Victoria asking
for volunteers. The children of the first 100 parents/guardians who replied were accepted into the study.

if he took a representative sample of each grade 4 student from each victorian suburb, it may be generalised

don't take my word for it. i am not very good at this.

[invalid]

There wasn't a question about the kind of sampling, was there? There's the random allocation question, for which the answer was yes...

[ngRISING]

17]
In terms of participant selection, should these results be generalised?
Explain your answer.

cannot be generalised 1mark. identify the sampling & explain why not 1more mark. a 4liner Q

[invalid]

Ah ok, phew. Got that one. Used basically your explanation.

[ngRISING]

[Glockmeister]

it more likely used convenience sampling,
First 100 participants who returned the allocation form, what if the first 100 participants lived CBD, because they live in the CBD and the headquaters of this place was CBD, faster delivery times on the consent forms. it can't be generalised to someone in mildura,frankston,sandringham,sunshine because its not a representative sample of everyone. i think my explanations thinking deeper into that Q lol! some assumptions were made too.

To test this program, Doctor Fraser sent a letter to all parents/guardians of Grade 4 children in Victoria asking
for volunteers. The children of the first 100 parents/guardians who replied were accepted into the study.

if he took a representative sample of each grade 4 student from each victorian suburb, it may be generalised

don't take my word for it. i am not very good at this.

Yeah that's pretty much it.

Just as a bit of a thought though. Most Psych studies do no use random sampling, but rather convenience sample. I'll let you ponder why.

[d0minicz]

Just as a bit of a thought though. Most Psych studies do no use random sampling, but rather convenience sample. I'll let you ponder why.

cus they cbf?

[Glockmeister]

Just as a bit of a thought though. Most Psych studies do no use random sampling, but rather convenience sample. I'll let you ponder why.

cus they cbf?

Did I say most, I mean all, sorry.

[ayaz]

In terms of participant selection, should these results be generalised?
Explain your answer.




for this question i said yes but only to yr 4 victorians not to others
is this correct

[ngRISING]

it more likely used convenience sampling,
First 100 participants who returned the allocation form, what if the first 100 participants lived CBD, because they live in the CBD and the headquaters of this place was CBD, faster delivery times on the consent forms. it can't be generalised to someone in mildura,frankston,sandringham,sunshine because its not a representative sample of everyone. i think my explanations thinking deeper into that Q lol! some assumptions were made too.

To test this program, Doctor Fraser sent a letter to all parents/guardians of Grade 4 children in Victoria asking
for volunteers. The children of the first 100 parents/guardians who replied were accepted into the study.

if he took a representative sample of each grade 4 student from each victorian suburb, it may be generalised

[NandSfan]

That's not random sampling, that's random allocation *facepalm*

no the research methods question did not use random sampling.

With random allocation - I'm pretty sure I read somewhere that that means that all participants have an equal chance of being allocated to either group, and the allocation of one participant to a particular group doesn't influence the allocation of another participant. So I thought by its very nature a matched participants design could never use random allocation, as by randomly assigning one half of the pair to one group, the other half's assignation is influenced (ie. they have to go to the other group).

Am I looking too deeply into it/have I misunderstood the question?

[ngRISING]

That's not random sampling, that's random allocation *facepalm*

no the research methods question did not use random sampling.

With random allocation - I'm pretty sure I read somewhere that that means that all participants have an equal chance of being allocated to either group, and the allocation of one participant to a particular group doesn't influence the allocation of another participant. So I thought by its very nature a matched participants design could never use random allocation, as by randomly assigning one half of the pair to one group, the other half's assignation is influenced (ie. they have to go to the other group).

Am I looking too deeply into it/have I misunderstood the question?

i think you misread his post. he was only telling someone that their definition meant random allocation. this experiment did not use random sample[it used convenience sampling], participants were allocated based on their test results, hence no random allocation occured.

[NandSfan]

Oh good - that's a relief. Because in the exam I wrote that there wasn't random allocation in this experiment.