STM3222 Lecture 3

What is the primary purpose of scaling in sensory evaluation?

• To analyze chemical composition

• To evaluate sensory characteristics

• To measure temperature

• To determine nutritional value

Which type of data is typically associated with category scaling?

• Qualitative data

• Interval data

• Ratio data

• Nominal data

What does a line-marking scale allow panelists to do?

• Estimate the ratio

• Choose categories

• Make a mark on a line

• Assign numerical values

In magnitude estimation scaling, what is the first sample used for?

• To establish a reference point

• To create a ranking

• To compare with nominal data

• To determine the average

What type of data does line scaling typically yield?

• Qualitative data

• Ordinal data

• Nominal data

• Interval data

Which of the following is an example of nominal data?

• Magnitude estimation

• Acceptance test

• Demographic data

• Preference test

What is the characteristic of ordinal data?

• magnitude

• equal intervals

• allows ranking

• no specific scale

What type of statistical test is used for two samples tested by one group of panelists?

• Chi square

• Dependent T-test

• One-way ANOVA

• Independent T-test

Which scale is used to measure the intensity of a stimulus by assigning a value on a limited scale?

• Line-marking scale

• Category scaling

• Nominal scale

• Magnitude estimation

What does ratio data indicate in sensory evaluation?

• Categories of responses

• Frequency counts

• Order of preferences

• Magnitude of differences