HRPYC81 Project4813 Assignment 62- 84%

Determining The Effect of Age on Short-Term Memory Performance of Adults From
Two Different Age Groups


HRPYC81
Assignment 62
Unique number:663697
Project 4813
14759764

, Table of content
1. Abstract..................................................................................................................... 1
2. Introduction.............................................................................................................. 1
3. Literature Review.....................................................................................................1
3.1 Overview............................................................................................................1
3.2 Background on memory.................................................................................... 2
3.3 Why we forget................................................................................................... 3
3.4 Link between memory and aging...................................................................... 3
3.5 New findings on human memory...................................................................... 5
4. Method.......................................................................................................................8
4.1 Theoretical foundations..................................................................................... 8
4.2 Sampling............................................................................................................ 9
4.3 Procedure........................................................................................................... 9
4.3.1 Stimuli for words................................................................................9
4.3.2 Stimuli for digits............................................................................... 10
4.4 Data collection/analysis................................................................................... 10
5. Ethics....................................................................................................................... 10
6. Results......................................................................................................................10
6.1 ANOVA...........................................................................................................11
6.2 Chunking......................................................................................................... 13
6.3 Primacy............................................................................................................14
6.4 Recency effect................................................................................................. 15
7. Discussion and interpretations.............................................................................. 17
7.1 Age and memory performance........................................................................ 17
7.2 Chunking......................................................................................................... 18
7.3 Primacy............................................................................................................18
7.4 Recency effect................................................................................................. 19
8. Limitations and recommendations....................................................................... 19
9. Conclusion...............................................................................................................20
10. References............................................................................................................. 21
11. Plagiarism Declaration.........................................................................................24
12. Appendices............................................................................................................ 25

, List of figures

Figure 1: ANOVA data of ages 20-40.................................................................................11

Figure 2: ANOVA data of ages 50-70.................................................................................11

Figure 3: ANOVA variance of words correctly recalled (WCR), words incorrectly recalled (WIR), and length
of correctly recalled digit (LOCRD) of the two age groups ...................................................... 12

Figure 4: ANOVA average of words correctly recalled (WCR), words incorrectly recalled (WIR), and length
of correctly recalled digit (LOCRD) of the two age groups ....................................................... 12

Figure 5: ANOVA standard deviation of words correctly recalled (WCR), words incorrectly recalled (WIR),
and length of correctly recalled digit (LOCRD) of the two age groups ....................................... 13

Figure 6: Chunking variance between the two age groups using the stimuli and dividing the data into chunks
...................................................................................................................................... 13

Figure 7:Chunking average between the two age groups using the stimuli and dividing the data into chunks
...................................................................................................................................... 14

Figure 8: Primacy of the first 5 words correctly recalled from the two age groups...................... 14

Figure 9: Primacy of the first 10 words correctly recalled from the two age groups.................... 15

Figure 10: Primacy of the first 5 digit sequences correctly recalled......................................... 15

Figure 11: Recency effect of the last 5 words correctly recalled.............................................. 16

Figure 12: Recency effect of the last 10 words correctly recalled............................................ 16

Figure 13: Recency effect of the last 5 digit sequences correctly recalled..................................17