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AP Psychology 1.5 Research Methods 6 Views
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Description:
AP Psychology 1.5 Research Methods. Which of the following best describes the researcher's behavior?
Transcript
- 00:00
and here's your schmuck du jour brought to you by yoga the number one [People doing yoga by a lake]
- 00:07
way to exercise while moving as little as humanly possible yeah all right
- 00:12
here's your question a researcher is interested in whether or not exercise
- 00:15
can improve the mood of people diagnosed with depression she decides to teach a [The question being written out]
- 00:19
yoga class for 10 of her patients diagnosed with depression and will then
Full Transcript
- 00:24
compare their moods to 10 members in her usual yoga class the knowledge of the
- 00:29
patient's diagnosis unknowingly influences the behavior of the
- 00:32
researcher while she teaches the yoga class to her patient the instructor is
- 00:37
extra kind and patient with the group compared to the way she usually treats
- 00:41
members of the yoga class which of the following best describes the researchers
- 00:46
behavior potential answers on your Center find your light and well it's [Pause prompt appears]
- 00:57
just I'm away alright well start would be double-blind bias a basic blind [People sat looking at the sun rise]
- 01:01
experiment is the minimum standard for all tests involving test subjects a [Two crowds of blindfolded people, control group and test group]
- 01:06
blind experiment works a little something like this all of the group's
- 01:09
being studied that's even the control groups have no idea which group they're [Guy walks past with a magnifying glass]
- 01:13
part of this prevents any placebo effect from taking place however the researcher
- 01:18
knows which group is which so the possibility of bias yes they'll exist [The research appears in a lab coat]
- 01:22
however a double-blind experiment means that even the researcher doesn't know [Another research appears with a blindfold on]
- 01:27
which group is which so that they can't unintentionally influence the outcome
- 01:31
well this is a step further than the basic blind experiment and describes
- 01:36
exactly what didn't happen in a given experiment long story short be as an
- 01:40
easy no confounding variables describes an extraneous variables that correlates
- 01:46
in some way with both the dependent and the independent variables if you're [The definition of confounding bias is shown]
- 01:50
attempting to study the correlation between variables a and B it's probably
- 01:54
not too productive to bring see into the mix and throw everything off however see [The letter C drops down and forces A and B apart]
- 01:58
describes a piece of data not a behavior that means it's not our answer all right
- 02:03
what about demand characteristic Adam and characteristic with
- 02:07
context of psychology describes that tell that indicates to the participant [Definition of demand characteristics is shown]
- 02:12
exactly what the researcher is looking for potentially influencing the
- 02:16
participants behavior while the researchers extra creaminess might be
- 02:20
seen as a demand characteristic well we're considering your overall behavior [Researcher handing over money to a participant]
- 02:24
not a specific in so he isn't our answer what about experimenter preference that
- 02:31
sounds exactly like what's going on here but before we namaste and call it a day [Guy puts his hands together and walks off]
- 02:35
let's take a closer look experimenter preference is simply a made-up variation
- 02:40
of the actual answer see experimenter bias the unconscious act of a researcher
- 02:47
treating experimental groups differently is known as experiment or bias if a
- 02:52
researcher knows which research subjects are assigned to which group he or she [Research pointing to one of the groups]
- 02:56
may unconsciously skew the results a certain way by treating the depressed
- 03:01
group differently from the control the researcher is exhibiting experiment or [The researcher gives a prize ribbon to one of the groups]
- 03:05
bias now if you'd excuse us we have some yoga to get to have active yeah the [Guy watching yoga on the TV as he is laid on the couch eating]
- 03:10
burrito is part of yoga don't question
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