This summary contains all the material from session 1 and 2 of SPSS (Bloc 1) needed to pass the exam. I have included screenshots that make it clearer to understand the exercises.
This summary only deals with the SPSS part of the MMS course so I recommend you take a look at the bundle of all 3 s...
SPSS
Session 1
Study on stress with the following variables:
stress: Measures whether the participant experiences stress, and where the stress comes
from
smoke: Measures the smoking behavior of the participant
relation: Whether or not the participant is involved in a long-term romantic relationship
optim: Measures how optimistic the participant is on a scale of 0 to 50
satis: Measures of life satisfaction of the participant on a scale of 0 to 50
negemo: The amount of negative emotions on a scale of 0 to 50
Variable view
The variable view gives an overview of the variables in the data set. Each row in the variable view
represents a variable. The columns describe the properties of the variable.
Name: A technical name for the variable. It’s an unique variable name to be used by
SPSS. It has some restrictions (e.g., may contain no blanks, should start with a letter, no
special signs (e.g., %), and can have a limited number of characters). Think of an SNR for
a student. It’s a technical code that we use in our administration system for your results
(See more details about names under the info button).
Label: A label is a description of the variable. Think of the student’s name. The label
doesn’t have to be unique, but of course it is not very convenient to use the same label for
different variables.
The difference between the name and the label is as follows: the name is a (short)
technical code for the variable. It should be unique. The label is a description of the
variable, which will also appear in the output. So, it’s important to use meaningful labels,
so it makes reading and understanding the output easier for you and your fellow
researchers.
Values: values are relevant if you have nominal or ordinal variables. For each value you
can specify a label that describes the meaning of the value (so called value labels).
Measure: it specifies the measurement level. We distinguish between three levels:
nominal, ordinal, and scale.
Data view
You will now see the data on your screen. In other words, it shows the scores on all variables for
all cases (participants) in the dataset.
Measurement levels (column “measure” in the variable view)
The first step in any statistical analysis involves inspection of the data at hand by means
of descriptive statistics and graphical summaries. This includes descriptive statistics such as the
mean, standard deviation, minimum and maximum value, amongst others. Graphical summaries
include scatter plots, bar charts, and histograms.
FREQUENCIES
SPSS reports percentages and valid percentages. These % differ when there are missing values.
DESCRIPTIVES
Histogram
Graphs → Legacy Dialogs → Histogram
Choose the variable and check the box “Display Normal Curve” OK
We can you conclude that
the data are more or less
normally distributed.
The shape of the histogram
follows the line of the normal
curve.
2
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper cmuyldermans. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €2,99. Je zit daarna nergens aan vast.
