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# Psy315 Week 1 Practice Worksheet Essay

1135 words - 5 pages

University of Phoenix Material

Week 1 Practice Worksheet

Prepare a written response to the following questions.

Chapter 1

1. Explain and give an example for each of the following types of variables:

a. Nominal: Measurements in which a number is assigned to represent something or someone, and is nothing more than an identifier. Examples: zip codes, license plate numbers, credit card numbers, country codes, social security numbers.

b. Ordinal: Measurements that convey order or rank alone. Differences between ranks in ordinal scales do not have meaning, they just simply indicate one value is greater than or less than another. Example: finishing orders in a competition, ...view middle of the document...

Example: score of an exam (0%-100%), or number of students in a class, or even position standing in a line.

h. Qualitative: Varies by class and is often represented as a label and describes nonnumeric aspects of phenomena. They are for observed behaviors. Example: behavioral disorders such as forms of depression, and drug use fall into category here.

2. Following are the speeds of 40 cars clocked by radar on a particular road in a 35-mph zone on a particular afternoon:
30, 36, 42, 36, 30, 52, 36, 34, 36, 33, 30, 32, 35, 32, 37, 34, 36, 31, 35, 20
24, 46, 23, 31, 32, 45, 34, 37, 28, 40, 34, 38, 40, 52, 31, 33, 15, 27, 36, 40

Make a frequency table and a histogram, then describe the general shape of the distribution.

|15-19 |
|Forms of Bullying |N |% |
|Electronic victims |41 |48.8 |
|  |Text-message victim |27 |32.1 |
|  |Internet victim (websites, chatrooms) |13 |15.5 |
|  |Picture-phone victim |8 |9.5 |
|  |Physical victim |38 |45.2 |
|  |Teasing victim |50 |59.5 |
|  |Rumors victim |32 |38.6 |
|  |Exclusion victim |30 |50 |
|Electronic Bullies |18 |21.4 |
|  |Text-message bully |18 |21.4 |
|  |Internet bully |11 |13.1 |
|  |Physical bully |29 |34.5 |
|  |Teasing bully |38 |45.2 |
|  |Rumor bully |22 |26.2 |
|  |Exclusion bully |35 |41.7 |

4. Kärnä and colleagues (2013) tested the effects of a new antibullying program, called KiVa, among students in grades 1–3 and grades 7–9 in 147 schools in Finland. The schools were randomly assigned to receive the new antibullying program or no program. At the beginning, middle, and end of the school year, all of the students completed a number of questionnaires, which included the following two questions: “How often have you been bullied...

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