We are from SHS nursing NR0702, subgroup 3
Introducing our group member
Start from left:
In front (Taufiq, Ge chun feng)
Second line (Lau wanling, Shaffa, Yeo shuhui, Lee jiamin )
Our statistic question
Rationale why we choose our variables. Importance of your study
1. This helps us to understand whether there is a relationship between the length of our right forearm and right foot.
2. It is convenient and faster for us to select the appropriate shoes length.
3. It provides another alternative method for us to buy shoes without trying on.
Variables
1. length of our right forearm
2. length of our right foot
Define null hypothesis
There is no relationship between the length of one’s right forearm and right foot.
Research hypothesis:
There is a relationship between the length of one’s right forearm and right foot.
About our sample:
Subject: 15male, 15female
Subjects can be any race
The participants were selected accidentally
Subjects were not been asked about personal and sensitive biodata.
This is our first trial, we tried among ourselves. So our first measure is just using ruler and measuring tape without any other equipment. With that our group measure from the tip to the elbow to their wrist (that for the right arm) as for the right foot we measure from the toes to the back of the hill. The pictures will show on how we measure participants. After measuring we will ask the participants to put their leg on the arm to compare. However we also found out that one of our participants is different from others as evidence by the picture below. For all the participants we will measure it three times and finally we found the average.
Thus because of the wrong method we used, our measurement was not accurate when we gather our data and analyze it. Thus this problem arise, and it is a big problem for us as we are running out of time
Instrument for 1st trial: ruler and measuring tape.
PROBLEM THAT WE FACED (INACCURATE MEASUREMENT)
As for our first trial, there is no standard for us to follow, we measured freely
As for the first trail we use measuring tape only, we have no clear ideal about how to measure….
hahahaha.
(As for this, a little bit difference from others, his foot is shorter then his forearm.) REJECTED – we did not include this subject into our data analyze.
Thinking of our mistakes:
· Our only measuring equipments are one ruler and one measuring tape.
· It is not accurate because we only estimate from the length of foot tip to the end of the heels. Even though we used the ruler to guide us the marking, we found that the ruler that we place on the floor may not be perpendicular to the measuring tape thus resulting in inaccurate reading.
Changing our Methods:
l) Right Forearm: measure from elbow in 90 degree to the wrist.
How?
-We draw 2 parallel lines on a cardboard. One for subject to place their forearm on it, another line to guide us to measure.
-we asked the subject to lift up their forearm and place down for each trial.
How?
-We take a show box and asked the subject to place foot (interior aspect) at the edge of the box and place the ruler at the end of the toe and mark with a pencil.
2nd trial instrument: measuring tape, cardboard, shoe box and ruler.
How often?
We took an average of three
AS we have came out with our new improvement,we basically try on ourselves first before others.
Cooperation among ourselves even when we are stressed up as time is running out.
The foot (interior aspect) was place at the edge of the box and measured from there.
We have draws two lines (parallel), one is the standard line for our participants, and the one is for us to measure according to the reading.
There were so many hands were taken,so which belongs to which,naahh cannot tell,confidential..hehe
Data analysis
Our raw data
state the final result:
P>alpha, Reject the Null hypothesis, so:
There is a very strong positive and significant relationship between the llength of one's right forearm and length of right foot (Pearson's R= 0.933>0.8, P = 0<0.05)>
The linear equation is:
Y=Mx+C
Y=1.062x-1.877
finally our reflection
1. We found that collecting data is not an easy job. It required us to discuss and brainstorm a few times before we can finalize the correct measurement to collect our data.
2. We do not just blindly collect our data, we need to adhere to standardized procedure during data collection.
3. We find it an interesting way of presenting our
SO ANY QUESTIONS FROM THE FLOOR?IF NO,THEN WE LIKE TO END OUR "PRESENTATION",THANK YOU!!!!!!!! =)
2 comments:
Hi. Glad to see smiling faces. Good to try the taking measurements on yourself before taking actual measurements on the subjects.
Check your linear regression line. Does not seem right. Ms Chia
Under the "raw data" you have 1's and 2's under the list labeled gender, and I was curious to know which one was female?
Post a Comment