coding- the format in which information is stored in various memory stores capacity- amount of info that can be stored in the memory stores duration- amount of time info can be stored for
outline alan baddeley's research into semantic and acoustic coding
-gave different lists to four groups of ppts to remmeber ga- acosutically similiar gb- acoustically disimiliar gc- semantcially similiar gc- semantically disimiliar - asked to immediately recall in the same order- tended to do worst with as sounds
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what was the iv and dv in alan baddeley's experiment
iv- lists dv- amount recalled
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outline joseph jacobs research into capacity
developed a tecahnique to meaure digit span researcher gives a specific number of digits ( e.g. 3) and the ppt is asked to recall these digits in the same order out loud if the ppt is correc =t the researche rincreases the nymber of digits that they
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evaluate joseph jacobs research into capacity
artifical stimulu/ cant be generalised to other kinds of memory tacks/ weakness becaue limited appplciation
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outline george miller's research into capacity
george miller 1956- investigated memory and chunking made notes on observations of everyday practice observed that lots of things come in svens e.g. days of the week dealdy sins etc suggests that the span of the stm is 7 +/- 2 items chunking- grou
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evaluate george millers research into capacity
conducted a long time ago when psychological research often lacked adequate control/ e.g. confoudning variables/ less valid
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outline maragaret and lyod peterson 1959 research into duration in the short term memory
24 undergraduate students 8 trials per student on each trial the s was given a consonant syllable ( trigram e.g. GFK) and a 3 digit number to rmemeber the s was then asked to count backwards from the 3 digit number until they were told to stop- to
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evaluate margaret and lyods research into duration in the short-term memory
artifical stimuli/ trigrams not representive of everyday tasks/ so lacks external validity
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evaluate research on the duration of the longterm memory by harry bahrick et al 1975
392 ppts from the american state of ohio aged between 17-74 recall was tested in the following ways - photo-recognition consisting of 50 photos - free recall of all the names in grad class findings ( within years after graduatiog)
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outline the findings on the duration of the longterm memory by harry bahrick et al 1975
photo recall - 15 years 90% -48 years 70% free recall - 15 years 60% - 48 years 30% shows ltm lasts a very long time indeed
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evaluate research on the duration of the longterm memory by harry bahrick et al 1975
high external valdiity as studied real-life memories however confoudning variables not controlled/ eg ppts may have looked over their yerabook during the years
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what is the definition of the multi-store memory model
a representation of how memory works in terms of three stores- sensory register, stm and ltm descripes how information is transferred from one store to another store/ forgotten / and remembered
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outline the sensory register in the multi-store memory model
memory stores each of our 5 senses ( different store per sense) coding in the iconic s/r is visual coding in the echoic store is acoustic huge capacity short duration- less than half a second
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outline the multi-store memory model by richard atkinson and richard shiffrins 1968/71
stimulus from the enviroment-sensory register ( iconic/ or echoic)- stm ( rehearsel)- ltm ( retrieves info from the stm)
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according to the multi-store mdoel of memory, how is info transferred from the sensory register to the short-term memroy
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