coding capacity and duration

Question 1

research on coding

Answer 1

Baddeley 1966
gave different list of words to four groups of ps to remember
1 acoustically similar words that sound the same
2 acoustically dissimilar words that sound dissimilar
3 semantically similar words with similar meaning
4 semantically dissimilar words with diff meanings
- immediately after hearing , stm recall did worse on acoustically similar words
- interval of 20 minute , ltm recall , recall did worse on semantically similar words
- shows ltm = semantic

Question 2

research on capacity
digit span

Answer 2

Jacobs 1887
developed a technique to measure digit span
researcher reads aloud 4 digits and the p is asked to recall in the correct order out loud . if this is correct the researcher reads out 5 digits until the participant cannot recall the order correctly . this determines the indviduals digit span .
Jacobs found that the mean span for digits across all participants was 9.3 items the mean span for letters was 7.3

Question 3

research on capacity
span of memory and chunking

Answer 3

Miller 1956
made observations of everyday practice . he noted. that things come in 7’s . 7s day a week , 7b. notes on the musical scale etc .
suggests that the span for of stm is about 7 items.
Miller noted people can recall 5 words as well as they can recall 5 letters , they do this by chunking , grouping sets of digits or letters into units or chunks .

Question 4

research on duration
stm

Answer 4

Peterson 1959
tested 24 undergraduates each student took part in eight trials .
on each trial the student was given a constant syllable known as trigram to remember and also a three digit number .
the student was asked to count backwards to prevent mental rehearsal of the constant .
FINISH