The questions under study were treated by using descriptive and inferential statistics. Frequency distribution and percentages measuring the data about the respondents’ profile, while the weighted mean determined the extent of knowledge on prevention of hypertension according to diet and physical activity. The formula is: Xwt = X1W1 + X2W2 + X3W3 N
Where: Xwt = weighted mean
X = score or item value
W = weight of score
N = total number of respondets
The computed mean was analyzed and interpreted based on the guidelines below :
Arbitrary Score 4
Weighted Score
Extent
Interpretation
3.26-4.00
Highly
Accuracy
Knowledgeable 3
2.51- 3.25
Moderately
When the above
Knowledgeable
items regarding prevention of hypertension according to diet and physical activity
are very satisfactorily shown(most of the answered correctly) 2
2.50-1.76
Least Knowledgeable
1
1.00-1.75
Not Knowledgeable
The inferential statistics included t-test and f-test. Specifically the t-test measured significant differences in the extent of knowledge on p revention of hypertension according to age and gender. The formula is T = X1 –X2
√ 1+2 (−1) Where: X1 = the mean of the first sample
X2 = the mean of the second sample
EX = summation of squared roots
N =total numbers of respondents
X1 and X2 = deviation from the means of the two samples
X1 and X2 = sum of squares in the two samples
The F- test measured significant differences in the extent of knowledge on prevention of hypertension according to educational attainment.
The formula is :
F=
Where: MSSb = the mean square of sum of squares between group
MSSw = the mean square of sum of squares within group
