Testing Study Methods

Question: Which Study Method Best Improves Memorization of 20-Digit Serial Numbers?

Purpose: To evaluate which study method helps best memorize and recall long numerical sequences under timed conditions. The methods being tested are listed below:

1. Mental Repetition – Reading the sequence over and over in your head

2. Verbal Repetition – Verbally repeating the digits

3. Chunking – Dividing into smaller logical groups

4. Method of Loci – Creating a mental “memory palace” with digit chunks placed in locations

5. Active Recall – Repeatedly testing oneself during the 2 minutes by covering the sequence and trying to recall

Procedure:

For each study method:

1. Show the participant 1 unique randomly generated 20-digit number

2. Give them 2 minutes to memorize the number using that assigned method

3. Complete 10 multiplication problems as a distraction

4. 1 minute to recall and write down as much of the 20-digit number as they can on a blank sheet

Results

Study Method	Digits Correct (out of 20)	% Correct
Mental Repetition	14	70%
Verbal Repetition	12	60%
Chunking	20	100%
Method of Loci	10	50%
Active Recall	15	75%