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Nick:

--- Quote from: "SxG" ---With the one about the researcher using 3 assistants to look after the three conditions. Could I say the confounding variable is experimental variable? Such as how the experimenter would unwantedly affect the dv due to his expectation and bias

Coz it said confounding variable so I went with describing a different type of variable, if it said effect I definitely would've went experimenter effect, but I dunno if it's also acceptable

My teacher said it's fix ratio but with those ones, it's hard to tell
--- End quote ---


Fixed ratio??? Did they explain why?? Are you referring to Q 33??

SxG:
High and steady rate without pauses is what they wanted. The highest rate of responses generated amongst the schedules is fix ratio. It also ensures a steady rate of response because the rats know exactly how many responses will get them a food so they keep pressing steadily again and again

Variable on the other hand is more resistant to extinction

If you argue that because the rat knows the amount of times he'll need to press the lever to be reinforced means they'd either get bored or not do it until they want it, then you can also argue that because variable is random, some rats might pause for a while because they mightn't get reinforced for a long time

That's at least what the teacher told me, she could be wrong. I myself thought it was variable ratio

Edit: Just checked on wiki, all fixed schedules provide pauses after each reinforcement, so variable ratio has to be it

Galelleo:
It is variable ratio, because the rat knows it will get a reward ONE time it presses the button, so it presses it as rapidly as posisbl eto increase the chances

Also, the confounding variable she was "TRYING" to control was Experimenter effects. Yes its where the experimenter influences the participants or their results because of their own expectations for the experiemnt.

(She used a double blind procedure)

fyl_000:

--- Quote from: "Galelleo" ---[img]http://img482.imageshack.us/img482/6157/img002fy0.th.jpg[/img]
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hey.. for SA question 16.. i said a confounding variable could have been the participants motivation, as they could get bored doing a similar thing three times, and i said a reward could have been offered to keep them interested.. u reckon that would get the marks or am i way off??

Odette:

--- Quote from: "fyl_000" ---
--- Quote from: "Galelleo" ---[img]http://img482.imageshack.us/img482/6157/img002fy0.th.jpg[/img]
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--- End quote ---


hey.. for SA question 16.. i said a confounding variable could have been the participants motivation, as they could get bored doing a similar thing three times, and i said a reward could have been offered to keep them interested.. u reckon that would get the marks or am i way off??
--- End quote ---



I think that's still correct :)

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