How much research methods do we need to know for unit 3?

[lolbox]

How much do we need to know?

Is it just ethical principles (informed consent, withdrawal rights etc), participant sampling (random, stratified)


Do we need to know about research designs, (such as repeated measures and matched-participants etc)  or about the placebo and experimenter effects (all that double-blind, single-blind stuff)

my friend who did psych last year said a lot of this stuff was only in unit 4 but she was unsure of the extent we need to know for unit 3
Does anyone know what is not needed? Thanks a lot !

please dont say we need to know all of it lol, else I've got more to learn

[littlebecc]

Lol sorry man, we need to know all of it
I'm not joking btw.

[lolbox]

shitttttt even the research designs crap Like the independent groups. Cause I'm yet to see that on a practise exam

[Boots]

Can anyone give me a proper definition of the 'experimenter effect?' Do we have to tlk about self-fulfilling prophecy and experimenter bias as well in the definition?

I gotta feeling this will be on this year, cos' i haven't seen it in previous yrs.

[lolbox]

The experimenter effect is pretty much when the experimenter collates their data in accordance to what they expect the outcome to be, so theres experimenter bias when conducting the experiment.
It is overcome via the double-blind procedure, whereby neither the experimenter nor the participants know which groups the participants have been allocated to.

[Boots]

That's experimenter bias! A subset of the experimenter effect.

[lolbox]

no, thats the experimenter effect.

there the same thing
experimenter effect = experimenter bias

They can be biased by hinting things to the participants OR as I said above, by recording the records in accordance with there own expectations

[The Detective]

Is the experimenter effect and placebo effect extraneous variables? or confounding?

[Spreadbury]

Is the experimenter effect and placebo effect extraneous variables? or confounding?

confounding. they've been mixed up with the effect of the IV so... yeah, confounding

[Boots]

then what can be a extraneous variable?

[Spreadbury]

any variable that isn't the independant variable that has an effect on the dependant variable. when you confuse an extraneous variable with the independant variable, it becomes a confounding variable. the experiment unintentionally influences their responses and assumes it's the effect of the IV, therefore it's a confounding variable.