A researcher who is interested in the effect of price on perceived quality gives a group of 50 students sneakers which are described to them as "expensive," while another group of 50 students received the very same sneakers which are described to them as "discount." The students are then asked to rate the perceived quality of the sneakers on a scale using only one of the following values (0 = poor quality, 1 = satisfactory quality, 2 = good quality, 3 = very good quality, 4 = superior quality) to see if there is a difference based on the description.

a) What is the independent variable?

b) What is the dependent variable?

c) Is the dependent variable discrete or continuous?

d) What scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable?

e) What research method is being used - experimental or observational- and why?

Question

cienfuegosmaricruz cienfuegosmaricruz

20-09-2021
Mathematics

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A researcher who is interested in the effect of price on perceived quality gives a group of 50 students sneakers which are described to them as "expensive," while another group of 50 students received the very same sneakers which are described to them as "discount." The students are then asked to rate the perceived quality of the sneakers on a scale using only one of the following values (0 = poor quality, 1 = satisfactory quality, 2 = good quality, 3 = very good quality, 4 = superior quality) to see if there is a difference based on the description.

a) What is the independent variable?

b) What is the dependent variable?

c) Is the dependent variable discrete or continuous?

d) What scale of measurement (nominal, ordinal, interval, or ratio) is used to measure the dependent variable?

e) What research method is being used - experimental or observational- and why?

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oeerivona oeerivona · Answer 1 · 2021-09-22T15:06:51+02:00

Research method is the strategy or process of data collection and analyses to improve understanding or to obtain new information on a subject

The details with regards to the given research are;

a) The independent variable is the price description given to the students

b) The dependent variable is the perceived quality rating

c) The dependent variable is a discrete variable

d) Ordinal scale of the measurement is used

e) Experimental research method is being used

The reasons the above values are correct are as follows;

a) The independent variable in a cause and effect relationship, is the cause of the effect, and the variable the researcher can control

In the question, the researcher is trying to find the effect of price on the perception of quality

Given that the price is the cause of the perception, the price description is the independent variable

b) The dependent variable is the effect observed or measured by the researcher, which is the perceived of quality rating, which can be either 0, 1, 2, 3, or 4, for the different perceived quality levels

c) A discrete variable is a countable variable, such that the number of values between any two values is countable

A continuous variable is one which can take any real value number between any two numbers

The dependent variable, which is the response by the student using the scaled perception of quality, which has only values of 0, 1, 2, 3, or 4, which is countable, and therefore, it is a discrete variable

d) An ordinal scale is focused on showing the order in which the variables are to each other, it does not highlight the differences between the values in the variables. It is used for ideas that are non-mathematical, such as level of satisfaction, pain, happiness or perception

The dependent variable which is the perception of quality, is a non-mathematical idea consisting of and the scale of measurement to be used is the ordinal scale measurement

e) An experimental research method is one in which the researcher manipulates the independent variable

The observational research method is one in which the researcher only observes a natural setting

Given that the researcher gives the students sneakers that are given different description of price or cost, the researcher manipulates the independent variable, and therefore, the research method is experimental

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