Fichas
coding, capacity & duration
Fichas del conjunto (14)
- 1coding (definition): the format in which info is stored in various memory stores
- 2coding Alan Baddely (1966) procedure- acoustically similar
- acoustically dissimilar
- semantically similar
- semantically dissimilar - 3coding Alan Baddely (1966) findings- recalling immediately after did worse in acoustically similar words
- recalling after 20 mins did worse in semantically similar words - 4coding evaluation artificial stim- words had no personal meaning to ppts
- cannot generalise
- limited application - 5capacity definition: the amount of info that can be held in a memory store
- 6capacity digit span Joseph Jacobs (1887)- asked to recall certain no of digits then adds more till the ppt cannot recall them in the same order
- mean no: 9.3
- mean letters: 7.3 - 7capacity evaluation lack validity- conducted a long time ago
- confounding variables not controlled
- validity supported by other research - 8capacity span of memory & chunking George Miller (1956)- made observations of daily practice
- noted that things came in 7s
- suggests that span of STM is 7±2
- chunking: grouping sets of digits/letters into units/chunks - 9capacity evaluation overestimated cap of STM- cavan (2001)
reviewed other research
- concluded cap was 4 chunks - 10duration definition: the length of time info can be held in memory
- 11duration STM Margaret & Lloyd Peterson (1959)- 24 undergrads
- students give consonant syllables to remember & asked to count backwards from 3 digit number
- told to stop after a different number of time
- short duration unless rehearsed - 12duration evaluation meaningless stim- does not reflect real life memory activities
- lacks external validity
- however we do try to remember meaningless things - 13duration LTM- 392 participants aged 17-17
- obtained high school yearbooks
- recall tested through photo recognition & free recall - 14duration evaluation high external validity- real life memory studied
- lower recall rates w/ artificial stim
- variables not controlled
Información
- Descripción
- AS - Level (memory) Psychology Fichas sobre coding, capacity & duration, creado por Neha Chakraborty el 09/05/2017.
- Creado por
- Neha Chakraborty · may 2017
- Actualizado
- 10 may 2017
- Visitas
- 1
- Valoración