PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
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Review the levels of measurement terms in the Statistics Visual Learner media piece. Compare and contrast Stevens’s four scales of measurement, and explain when each type of scale should be used. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taking the exam using Form B is upset because she claims that Form B is much harder than Forms A and C. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement Discuss how percentile point data might be useful to determine if the student is correct.
Details:
Complete the following exercises from Review Questions located at the end of each chapter and put them into a Word document to be submitted as directed by the instructor. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
- Chapter 1, numbers 1.8 and 1.9
- Chapter 2, numbers 2.14, 2.17, and 2.18
- Chapter 3, numbers 3.13, 3.14, 3.18, and 3.19
- Chapter 4, numbers 4.9, 4.14, 4.17, and 4.19
Show all relevant work; use the equation editor in Microsoft Word when necessary. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
PSY 520 Week 2 Discussion 1 Latest-GCU
The process of random sampling guarantees that the sample selected will be representative of the population. Is this statement true Discuss. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
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PSY 520 Week 2 Discussion 2 Latest-GCU
Review the video on Normal Distribution in the Calculations section of the Statistics Visual Learner media piece.
Bob compares his SAT Verbal score of 400 to Marge’s ACT Verbal score of 20. I beat you, he exclaims. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
My score is 20 times your score! Although his multiplication is good, his logic is faulty. Explain why. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
Details:
Complete the following exercises located at the end of each chapter and put them into a Word document to be submitted as directed by the instructor.
Show all relevant work; use the equation editor in Microsoft Word when necessary. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
1. Chapter 13, numbers 13.6, 13.8, 13.9, and 13.10
2. Chapter 14, numbers 14.11, 14.12, and 14.14
3. Chapter 15, numbers 15.7, 15.8, 15.10 and 15.14
Is it true that parametric tests are generally more powerful than nonparametric tests If so, give two reasons why you might choose to use a nonparametric test instead of a parametric test. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
Explain how the ANOVA technique avoids the problem of the inflated probability of making Type I error that would arise using the alternative method of comparing groups two at a time using the t-test for independent groups. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
Quantitative and qualitative data at the greatest level
What exactly is data? In a nutshell, it’s a set of measures or observations that can be classified as qualitative or quantitative.
Information regarding attributes, or information that cannot be assessed, is referred to as qualitative data. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement It’s mainly textual and detailed. The color of someone’s eyes or the car they drive are two examples. It’s frequently used in surveys to categorize ‘yes’ or ‘no’ responses.
Data that is quantitative is numerical. It’s a term used to describe data that can be counted. Distance, speed, height, length, and weight are all instances of quantitative data. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement The distinction between qualitative and quantitative data is easy to recall because one refers to attributes while the other refers to amounts.
A bookcase with 100 volumes on its shelves and a height of 100 centimetres is an example. This is a set of numerical data points. The bookshelf’s color, red, is a qualitative data item. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
What is numerical (quantitative) data?
There are two sorts of quantitative, or numerical, data: discrete and continuous.
Data that isn’t repeated
A full number that cannot be divided or broken down into separate pieces, fractions, or decimals is referred to as discrete data. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement The number of pets a person has is an example of discrete data; one can have two dogs but not two-and-a-half dogs. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement Because a team can’t have a half-win, it’s either a victory, a loss, or a tie, the amount of victories a fan’s favorite team receives is also discrete data.
Data that is constantly updated PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
Continuous data refers to numbers that can be divided into parts, units, fractions, and decimals. Continuous data points can be measured, such as height and weight. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurementTime can also be divided into fractions of a second or a half-hour. Another example of continuous data is temperature.
Continuous vs. discrete
The difference between the two sorts of quantitative data is easy to remember: data is discrete if it can be counted, and continuous if it can be measured. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement Someone can keep track of the number of pupils, tickets purchased, and books, while another can measure height, distance, and temperature.
What is qualitative (categorical) data, and how does it differ from quantitative (numerical) data? PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement
Non-numerical qualitative data describes the characteristics of data points. It’s used to categorize data and can be further broken down into sub-categories using the four measurement scales. PSY 520 Week 1 Discussion 1: Stevens’s four scales of measurement