Research in to STM

Question 1

What did Conrad research?

Answer 1

Encoding

Question 2

When did Conrad do his research?

Answer 2

1964

Question 3

What did Conrad do?

Answer 3

Visual presented students with letters 1 at a time.
Group 1: Letters that are acoustically similar
Group 2: Letters that are acoustically dissimilar

Question 4

What did Conrad find?

Answer 4

Letters which are acoustically similar are harder to recall from STM than letters that are acoustically dissimilar.

Question 5

What did Conrad conclude?

Answer 5

STM encodes things acoustically even though the items were presented visually

Question 6

What did Miller research?

Answer 6

Capacity

Question 7

When did Miller do his research?

Answer 7

1956

Question 8

What did Miller find?

Answer 8

That STM could be considerably increased by ‘chunking’: organising the info to make it more meaningful (e.g. abbreviations from the LTM)

Question 9

What did Peterson and Peterson research?

Answer 9

Duration

Question 10

When did Peterson and Peterson do their research?

Answer 10

1959

Question 11

What did Peterson and Peterson do?

Answer 11

Got students to recall trigrams (groups of 3 letters) after longer and longer intervals.
During the intervals, students were prevented from rehearsing the trigrams by a counting task

Question 12

What did Peterson and Peterson find?

Answer 12

Information staying in our STM for 18-30 seconds before it fades (unless we rehearse it)

Question 13

What are some weaknesses of Peterson and Peterson’s experiment?

Answer 13

The experiment is artificial (lacks ecological validity)

Reason for poor recall could be due to interference from earlier trigrams