Quantitative Methods Study Guide Three level of Measurement
Three levels of measurement
From Low to High Levels of Precision
Nominal
Ordinal
Interval/Ratio
Coding (and identification in R) of variable should be consistent with
its level of measurement.
Quantitative Methods Study Guide Mutually Exclusive and Exhaustive and
Examples
Example: political tolerance
The concept of political tolerance is defined as the extent to which
individuals exhibit the characteristic of expressing a willingness to allow
Quantitative Methods Study Guide Homogeneity and Heterogeneity
Homogeneity
Defined: no variation in a variable
i.e. a constant
All observations of a variable have the same value
Example: everyone is 21 years old
21.72314 years old
Homogeneity
Heterogene
Quantitative Methods Study Guide Wrap up to Political Geography Concepts
Wrapup
We use concepts every day when speaking about politics and geography.
Whether or not we plan to develop quantitative measures, it is valuable to
think about what our concep
Quantitative Methods Study Guide Using R, exercise examples
Lets try Exercise 1.3
run frequencies for the states abortlaw variable.
freq(states$abortlaw)
Copy the graph into a Word document
Use PrintC to export the table
printC(freq(states$abortlaw)
Go
Quantitative Methods Study Guide Using R, Types of Skewness and medians
Types of skewness
Positive or right
Mean is above the median
Graphically to the right
Negative or left
Mean is below the median
Graphically to the left
Median is resistant to skewne
Katherine Johnson
Module Lab 1
1) The researcher used a sample because they selected 8 college students from
a local university, which is intended to represent college students in the
United States as a whole.
2) The researcher used a correlational design
PSYC 317 Practice Midterm Exam Answer Key
Question 1 8 (33 pts): Calculate your response BY HAND. Be sure to show all work. Responses that do not include work
will receive an automatic 75% grade penalty. Respond in full sentences as appropriate. This sect
Module 3 Lab Answer Key
Hand Computation Section: For questions 1  3, respond to the question by mathematically calculating the answer to
the problem BY HAND. Be sure to show all of your work. Responses without work will receive an automatic 75%
point re
Module 2 Lab Answer Key
Consider the following: A researcher is interested in exploring whether reading fiction can influence your ability to relate
to others. She decides to test this by recruiting 8 participants to complete a study where they were rando
Quantitative Methods Study Guide Concept of measures and Quality
From Concept to Measures
Questions so far?
Review: Measurement Quality
Concerns for the operational definition
Measurement Validity does the measure reflect the intended
characteristic(s
Quantitative Methods Study Guide Getting started with R
Getting Started with R
Using R
Install packages
Run commands
Answer research questions
Review
Levels of measurement
Three levels of measurement
From Low to High Levels of Precision
Nominal
Ordinal
Quantitative Methods Study Guide Using R, Deviation
Deviation
How far away from the mean is each observation?
Sum of deviations: add up all the differences between each value and the
mean
Variance
The Variance is the sum of squared deviations from th
Kristen Kelly
Quantitative Methods
Homework 1
January 20, 2016
2. Population Are all the individuals of interest for a particular study
Sample Is a set of individuals selected from a population
Parameter Is a numerical value that describes a characteri
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Quantitative Methods Study Guide Operational Measures
From Concept to Measures
Example continued: democracy Instruments?
Lijphart on judiciaries
Number of years of current constitution
POLITY or Freedom House scores
Pollocks template, p. 12
The concept
Practice Module 2 Lab Answer Key
For #1 6, calculate all responses BY HAND and be sure to show your work. Keep all intermediate calculations out to
6 decimal places and round all final answers to 2 decimal places. Explain your response in full sentences w
PSYC 317 Midterm Exam Answer Key
Questions 1 9 (43 pts): Calculate your response BY HAND. Be sure to show all work. Responses that do not include work
will receive an automatic 75% grade penalty. Respond in full sentences as appropriate. This section shou
Quantitative Methods Exam QM Exam 1
Quantitative Methods Assessment Number 1
Exam number:_
Answer ALL questions. Each is worth 10% except Question 9, which is worth 20%. Your completed paper
must be in the box by 1200 Friday 3 November.
1. Statistical t
Quantitative Methods Psyc 317
Course Number: PSYC 317
Classroom: MGB 101
Prerequisites: PSYC 201
Lecture Time: MWF 1:00 1:50
Official Description: The application of statistical principles to psychological
research problems,
including an introduction to t
George Briggs
Lab 9
00876607
Psychology 317 Lab Lab 9
Lab Assignment 9
Lab 9 Assignment
Using SPSS, answer the following questions. For each question, make sure to report the
necessarystatistics and copy and paste appropriate SPSS output. This is mainly
Psych 317 Lab Quantitative Methods
Psych 317:
Quantitative Methods
Lab 1
George Briggs
Due night before week 4 lab @ 11:00 pm
1
Lab 1 Assignment
Using SPSS, answer the following questions. For each question, make sure to report the
necessary
statistics
Practice Module 3 Lab Answer Key
Hand Computation Section: For questions 1  3, respond to the question by mathematically calculating the answer to
the problem BY HAND. Be sure to show all of your work. Responses without work will receive an automatic 75%
Module 1 Lab Answer Key
A researcher was interested in whether or not there was a relationship between starting salary for new hires and how
much their mothers worked when they were children. To explore this question, she administered a survey to 12 new
h
Practice Module 1 Lab Answer Key
Consider the following: A researcher conducted a study on memory. The researcher hypothesized that participants who
created personal associations with the test items would have better recall than those who did not create p
MIDTERM EXAM STUDY GUIDE
NOTE: This sheet provides an outline of the major concepts you should know for the midterm exam. It should
not be considered an exhaustive list of all material that you might be tested on. Instead, consider this a list of
some sug
PSY 317  Midterm Exam Formula Sheet
:
M:
2
=
= 2
2
s =
1
s= 2
zscores (population):
zscores (sample):
X from z (population): X = z + X from z (sample): X = zs + M
ztest (z for a sampling distribution):
M=