An observation is what the record shows. An unsupported claim is something added to the record, such as a cause, a guarantee or a rule for everyone. Good Sports Science answers keep the two apart.
This lesson belongs to SPM subjects and learning resources. It follows on from reading a small sports-data table.
How do I tell the difference?
Ask of every sentence: could a person check this by looking at the table, the stopwatch or the log? If yes, it is an observation. If the sentence needs information that is not recorded, it is an inference or a claim.
There are three levels. An observation states the measurement. A supported inference explains a pattern but admits limits. An unsupported claim states a cause or a general rule the data cannot carry.
Worked example: one original training case
Nadia (an original example) ran 400 m in 82 s in week one. She followed a new weekly plan for four weeks and ran 78 s in week five. The record does not mention sleep, weather or her previous training.
| Statement | Level | Why |
|---|---|---|
| Nadia’s time fell from 82 s to 78 s. | Observation | Directly in the record. |
| Nadia ran 4 s faster in week five. | Observation | 82 − 78 = 4, simple arithmetic on the record. |
| The plan may have helped her improve. | Supported inference | Hedged and consistent with the record. |
| The plan made Nadia faster. | Unsupported claim | A cause is stated, but sleep, weather and earlier training were not recorded. |
| This plan works for every student. | Unsupported claim | One person cannot support a rule for everyone. |
Three questions before you write “because” or “proves”
- Did the data measure this, or am I adding it?
- Could something else recorded or unrecorded explain the change?
- How many people does this cover?
If the answer to question 2 is yes, or the answer to question 3 is one person, soften the sentence or turn it into an observation.
The mistake to avoid
“The results prove the plan works” is a common overreach. One change in one person is not proof.
A better version: “Nadia’s time fell by 4 s over four weeks of the plan, which is consistent with improvement, but one person and no comparison means the plan cannot be shown to be the cause.”
Check yourself
Sort each statement as observation, supported inference or unsupported claim. An original record shows that Hafiz’s resting heart rate was 74 beats per minute (bpm) before a month of swimming and 70 bpm after.
(a) Hafiz’s resting heart rate was 4 bpm lower after the month.
(b) Swimming lowers everyone’s resting heart rate.
(c) The fall may be linked to the swimming, although other factors were not recorded.
(d) Swimming made Hafiz fitter.
Answer
(a) Observation, since 74 − 70 = 4 from the record.
(b) Unsupported claim: it covers everyone from one person’s data.
(c) Supported inference: it is hedged and admits limits.
(d) Unsupported claim as written: fitness was not measured directly and a cause is stated. It could become an inference if reworded to “may be consistent with improved fitness”.
What to study next
Practise applying the sorting skill in the original Sports Science practice set, and read planning an original learning-project reflection to use it on your own small project. The structured-answer self-review tool helps you check which level each of your sentences belongs to.
For a teacher who can question your conclusions and help you reword them, see online one-to-one Sports Science tuition.