Textbook Notes (367,969)
Psychology (3,337)
PSYC 1010 (57)
c (11)
Chapter 2

# Chapter 2- Frequency Distributions.docx

3 Pages
95 Views

School
Department
Psychology
Course
PSYC 1010
Professor
c
Semester
Fall

Description
Chapter 2- Frequency Distributions Frequency Distributions Raw Scores- data that have not yet been transformed or analyzed - Organized into a frequency distribution Frequency Distribution- describes the pattern of a set of numbers by displaying a count or proportion for each possible value of a variable - Frequency Table  Visual depiction of data that shows how often each value occurred; how many scores were at each value  The best way to create an easy-to-understand distribution of data  The data can then be displayed as a grouped frequency table, a frequency histogram, or a frequency polygon  A frequency table shows the pattern of our data by indicating how many participants had each possible score  The data in a frequency table can be graphed in a frequency histogram or a frequency polygon - Steps in creating a frequency table:  Determine the highest and lowest scores  Create two columns: First column labeled with the variable name, Second column labeled “frequency”  List the full range of values that encompasses all the scores in the data set- include all values in the range  Count the number of scores for each value, write the total numbers in the frequency column - Grouped Frequency Tables  Allows us to depict our data visually by reporting the frequencies within a given interval (range of values) rather than the frequencies for a specific value - Steps in creating a grouped frequency table:  Find the highest and lowest scores in the frequency distribution  Determine the full range of data - Always round down to the nearest whole number - Subtract the lowest number from the highest number and add one  Determine the number of intervals and the best interval size  Figure out the number that will be the bottom of the lowest interval - This number must be a multiple of the interval range that we are using (i.e. if we have intervals of 5, than our lowest number must be a multiple of 5 that is closest to our lowest number)  Finish the table by listing the intervals from highest to lowest and then counting the numbers of scores in each Histograms - Look like a bard graph, typically depict scale data with the values of the variable on the x-axis and the frequencies on the y-axis - Each bar reflects the frequency for each value or interval - Constructed from either frequency tables or grouped frequency tables - Bar stacked one against the other, ranging from lower numbers to higher numbers - Steps in creating a histogram:  Draw the x-axis and label it with the variabl
More Less

Related notes for PSYC 1010
Me

OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Join to view

OR

By registering, I agree to the Terms and Privacy Policies
Just a few more details

So we can recommend you notes for your school.