A researcher conducted a taste test with four types of mangoes. Each individual was blindfolded and

facalqc4

facalqc4

Answered question

2022-03-02

A researcher conducted a taste test with four types of mangoes. Each individual was blindfolded and given the samples to taste in random order with washout periods between them.
1) How many sequences are required for this study?
2) Give an example of the random sequences for two test subjects.
3) Give one example of a first order effect.

Answer & Explanation

junoon363km

junoon363km

Beginner2022-03-03Added 8 answers

1) In this case, the number of sequences possible is simply given by 4! which is =424
2) The two example sequences for providing mangoes to two individuals:
1: {Julian --> East Indian --> Number 11--> Robin}
2: {East Indian --> Robin --> Julian --> Number 11}
It's order effect
3) The first-order effect in our case is that the taste of the first mango may be different than those of the next mangoes as it would depend on the current state of the tongue. If the taste in the subject's mouth is faded then the mango might taste sweeter while the next mango may not taste the same.

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