Study guide
MCRS B Study Guide Partial Exam 1
- Course
- Institution
A full summary of all the content you need to know to pass part B of MCRS Partial Exam 1.
[Show more]
2 reviews
By: shixiangjun • 2 year ago
By: alexandragosmand • 4 year ago
Seller
Follow
segusogaia
Reviews received
Content preview
METHODS OF COMMUNICATION RESEARCH AND STATISTICAPA Guidelines
● Calculate with 3 decimals
● Round all results to 2 decimals
● Exception: p-values, write value round to 3 decimals (e.g. p = .231)
● But…if your p-value is smaller than .001. then report as: p<.001
● M, SD, p, t, d: italics
WEEK 1B: INTRODUCTION TO DESCRIPTIVE AND INFERENTIAL STATISTICS
➔ Descriptive Statistics are techniques that are used to present, organise and summarise
data/ set of numbers - data reduction.
➔ Inferential Statistics are techniques that are used to make predictions and inferences
(draw conclusions) about an entire population based on observations made in a sample.
T
he Research Process
,Analyzing data
1. Unit of analysis/ cases (all subjects/ objects that are mentioned - who your sampled is
made up of)
2. Variables (feature/ characteristics of the subjects)
3. Values (possible categories per characteristics i.e. gender = male/ female)
1. Univariate analysis are statements about 1 variable (e.g. hours a day spent on social
media)
2. Bivariate analysis are statements about 2 variables (e.g. is there a relationship between
drinking coffee and feeling cranky)
3. Multivariate analysis are statements about more than 2 variables (e.g. is the influence of
drinking coffee on feeling cranky different for students that for lecturers)
Levels of measurements
Nominal ❏ Names or categories ❏ Gender
❏ Lowest level of measurement ❏ Handedness
❏ Favorite color
❏ Religion
Ordinal ❏ Names or categories and the ❏ Consumer satisfaction
order is meaningful ratings
❏ Can't assume the differences ❏ Military rank
, between adjacent scale values
are equal
Interval ❏ Names or categories and the ❏ Fahrenheit temperature
order is meaningful, and intervals scale - zero doesn't mean
have the same interpretation that the temperature
❏ Addition and subtraction is doesn't exist
possible ❏ Year
❏ Cannot multiply or divide values
Ratio ❏ Highest and most informative ❏ Amount of money - zero
scale money indicates the
❏ Contains the qualities of nominal, absence of money
ordinal, and interval scales with
the addition of an absolute zero
point
➔ Discrete variable: Discrete variables are numeric variables that have a
countable
number of values between any two values. A discrete variable is always numeric. For
example, the number of pets you have.
➔ Continuous variable: Continuous variables are numeric variables that have an infinite
number of values between any two values. A continuous variable can be numeric or
date/time. For example, the length of a part or the date and time a payment is received.
Measures of central tendency
1. The m ode is the most commonly occurring value i n a distribution.
2. The m edian is the m iddle value in distribution when the values are arranged in
ascending or descending order.
3. The m ean is the sum of the value of each observation in a dataset d ivided by the
number of observations. This is also known as the arithmetic average.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller segusogaia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.19. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
55628 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now