2.3 Interleaving

Question 1

What is the opposite of interleaved?

Answer 1

Blocked - Practicing A repeatedly, then switching to B, then C, etc.

Question 2

In “Geometry Study”, what is the task?

Answer 2

Compute volumes for 4 different types of solids

Question 3

In “Geometry Study”, what is the protocol?

Answer 3

1. Training (Blocked vs interleaved)

2. Testing (All interleaved)

Question 4

In “Geometry Study”, what are the conditions?

Answer 4

2 = blocked + interleaved

Question 5

In “Geometry Study”, what are you measuring?

Answer 5

Training performance and testing performance

Question 6

In “Geometry Study”, what are the results?

Answer 6

Practice performance: Blocked is better
Test performance: Interleaved is better
The interleaved group is stable between practice and test. The blocked group goes down in accuracy dramatically

Question 7

In “Faces and Names study”, what is the task?

Answer 7

Lean fake face and name pairings

Question 8

In “Faces and Names study”, what is the protocol?

Answer 8

1. Training (Blocked vs interleaved)

2. Testing (All interleaved)

Question 9

In “Faces and Names study”, what are the conditions?

Answer 9

2 = blocked + interleaved

Question 10

In “Faces and Names study”, what are you measuring?

Answer 10

Training performance and testing performance

Question 11

In “Faces and Names study”, what are the results?

Answer 11

Acquisition (Training): Blocked is better
Test performance: Interleaved is better

The interleaved group is stable between training and test. The blocked group goes down in accuracy dramatically

Question 12

In “Complex motor skill study”, what is the task?

Answer 12

Learn complex motor skills, initiating movements on a cue and as fast as possible

Question 13

In “Complex motor skill study”, what is the protocol?

Answer 13

1. Training (Blocked vs Random interleaved)

2. Testing (Blocked vs Random interleaved)

Question 14

In “Complex motor skill study”, what are the conditions?

Answer 14

2*2 = (2 Training) * (2 Testing)

Question 15

In “Complex motor skill study”, what are you measuring?

Answer 15

Time, less is better

Question 16

In “Complex motor skill study”, what are the results?

Answer 16

Training: Blocked is better
Testing (From worst to best):
B-R [Easy training, difficult test]
R-R [Difficult]
B-B [Easy]
R-B [Difficult training, easy test]

Question 17

In “Children study”, what is the task?

Answer 17

Learn formulas to calculate the number of faces, edges, corners, and angles on prisms

Question 18

In “Children study”, what is the protocol?

Answer 18

1. Training (Blocked vs interleaved)

2. Testing (All interleaved)

Question 19

In “Children study”, what are the conditions?

Answer 19

2 = blocked + interleaved

Question 20

In “Children study”, what are you measuring?

Answer 20

Evolution over time

Question 21

In “Children study”, what are the results?

Answer 21

Training: Blocked is better
Test performance: Interleaved is better

The interleaved group is stable between training and test. The blocked group goes down in accuracy dramatically

Question 22

In “Children study”, researchers discovered what 2 types of errors?

Answer 22

• Students using a made up formula that they had NOT learned [A FABRICATION ERROR]
• Students use a valid formula, but they applied it to the wrong task [A DISCRIMINATION ERROR]

Question 23

In “Children study”, describe the chart on the types of errors

Answer 23

Fabrication errors are low and stable for blocked and interleaved training
Discrimination errors are very high for blocked training, but not for interleaved training

Question 24

The overall difference between blocked and interleaved training is what? Why?

Answer 24

The number of discrimination errors.

Blocked leads to more since you don’t practice choosing what knowledge to apply