-
- Data Treatment
-
- The pretest was subjected to a Chi-Square Analysis to determine if
there was a significant relationship between Aspartame use and headaches.
Fourteen subjects completed the questionnaire. The data were treated using
Stat Star.
| |
- Use Aspartame
|
No Aspartame |
- Headaches
|
8 |
1 |
- No Headaches
|
3 |
2 |
- Obs f
- Exp f
- R prop.
|
Use Aspartame |
No Aspartame |
T Tot/prop |
| Headaches |
- 8
- 7.07
- 0.89
|
- 1
- 1.93
- 0.11
|
- 9
- 0.64
|
| No Headaches |
- 3
- 3.93
- 0.60
|
- 2
- 1.07
- 0.40
|
- 5
- 0.36
|
| Tot / prop. |
- 11
- 0.79
|
- 3
- 0.21
|
- 14
- 1.00
|
- Df=1
- Chi Square = 1.59 Probability = 0.20686
- Phi Coefficient = 0.34
- W/ Yateís Correction Chi Square = 0.34 Probability =
0.56018
- Even though it appears that a majority of aspartame users experience
headaches, based on the sample size and results in this study, there is
no significant difference in incidence of headaches between aspartame users
and non-users.
-
| RETURN
to Report |