memory

Question 1

study of coding in STM and LTM

Answer 1

• baddeley asked patients to memorize acoustically or semantically similar words. Immediate recal was worse with acoustically similar words, recall after 20 mins was worse with semantically.

limitation : words had no personal meaning to participants, results had limited application, causious abt generlaising.

Question 2

study into the capacity of STM

Answer 2

• jacobs read 4 digits and increased the no. digits till participant couldnt recall order.
• found participants could repeat back aorund 9 numbers and 7 letters correctly.

limitation : lacked control of extraneous variables. Some participants may have been distracted. Confoundig variables.

Question 3

study into the duration of STM

Answer 3

• peterson and peterson gave students a consonant syllable to remember and a 3 digit no. to count backwards. for a certian amount of time.
• average recall was lowest at 18 seconds, suggesting STM have a duration of 18 to 30 secs.

limitation : has no real life application, memorising consonant syllables, lacks extrernal validity.

Question 4

Study into the duraton of LTM

Answer 4

• bahrick yearbook study,asked to recall names of classmates showing participants their highschool yrbook or without.
• free recall was much less accurate.

srength : real life application, meaningful memories where studied, high external validity.