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An experiment was carried out to investigate the growth rate of pigs - Scottish Highers Biology - Question 13 - 2018
Question 13
An experiment was carried out to investigate the growth rate of pigs. They were put into five groups of eight pigs, each with the same average initial body mass. Eac... show full transcript
Worked Solution & Example Answer:An experiment was carried out to investigate the growth rate of pigs - Scottish Highers Biology - Question 13 - 2018
Step 1
Which aspect of the experimental design increased reliability of the results?
Answer
The aspect that increased the reliability of the results is option D: 'Each group contained eight pigs.'
This ensures that the results are not influenced by individual variance, allowing for more consistent data across each group. By maintaining the same number of pigs in each group, any differences in growth rates can be more accurately attributed to the different diets rather than discrepancies in group size or individual weight variation.