Memory - Duration - Bahrick Flashcards

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1
Q

When ?

A

1975

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2
Q

Who ?

A

Bahrick et al

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3
Q

Participants ?

A

studied participants between the age of 17-74

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4
Q

what did Bahrick use for recall ?

A

High School Yearbooks

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5
Q

What is photo recognition ?

A

Tests consisting of 50 photos.

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6
Q

What is free recall ?

A

Participants had to recall the names of all the people in their graduate class

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7
Q

Findings - Photo recognition within 15 years

A

90% accurate

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8
Q

Findings - photo recognition after 48 years

A

70% accurate

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9
Q

Findings - free recall after 15 years

A

60% accurate

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10
Q

Findings - free recall after 48 years

A

30% accurate

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11
Q

conclusion ?

A

Long term memory can last up until a lifetime.

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12
Q

why did it have high external validity?

A

used meaningful memories - high school yearbooks.

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13
Q

What did Shepard (1967) find ?

A

When research had been conducted using meaningless pictures recall rates tend to be lower.

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14
Q

What are some confounding variables ?

A

The participants may have looked over their high school yearbooks over the years and therefore rehearsed their memory.

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