Question

I AM TIMED

The data from a replicated experiment are very different from the data obtained during the initial experiment.
Which statements identify possible reasons for the difference in the data? Check all that apply.

The initial experiment was not a valid experiment.
The replicated experiment was performed incorrectly.
The replicated experiment used a different laboratory.
The initial experiment involved more trials and data.
The replicated experiment changed the variables being tested.

Answer 1

• The initial experiment was not a valid experiment.
• The replicated experiment was performed incorrectly.
• The initial experiment involved more trials and data.
• The replicated experiment changed the variables being tested.

Step-by-step explanation:

A replicated experiment is one that is performed with the same given factors and variables as an earlier experiment. This replication serves to validate the results of the previous experiment, as it must have the same results, regardless of whether they are performed in different laboratories. When the replicated hope presents different results from the previous experiment, the probable things that may have happened are:

• The initial experiment was not a valid experiment.
• The replicated experiment was performed incorrectly.
• The initial experiment involved more trials and data.
• The replicated experiment changed the variables being tested.

Answer 2

Answer: The initial experiment was not a valid experiment.

The replicated experiment was performed incorrectly.

The initial experiment involved more trials and data.

The replicated experiment changed the variables being tested.

Step-by-step explanation:

The initial experiment is the one which is conducted for the first time. The repeated experiment is the experiment is the experiment which is conducted by the researcher as done in the initial experiment so as to check the results and validity of the initial experiment.

The difference in the data occurs in the initial experiment and repeated experiment. This is because of the following reasons:

The initial experiment was not a valid experiment. : The initial experiment may consists of incorrect results due to lack of precision or application of incorrect methodology.

The replicated experiment was performed incorrectly. : The results of replicated experiment may be incorrectly performed which has resulted in yield of results which can be different to the initial experiment.

The initial experiment involved more trials and data. : The initial experiment data can be more accurate than that of the replicated data due to the fact that the initial experiment has undergone with more number of trials and data.

The replicated experiment changed the variables being tested. : The change of variables will make the methodology of the replicated experiment different from that of initial experiment. Hence, data from the two experiments will be different.