All video (main page)
The Empirical Cycle
Stakeholder identification and description in problem analysis
Comparing stakeholders in problem analysis
Decision making and Research Questions
Different types of Research Questions
Developing empirical research questions
Units and Variables in Empirical Research questions
Concepts and facets
Intension and Extension of Concepts
Intension and Extension of Judicial concepts
Conceptualizing ordinal variables
Dimensions of concepts
Conceptualization using interviews
Variables as constructions
Causality and Explanation
Time order in causal relationships
The effect of Third Variables
Various types of bivariate relationships
Constructing causal models in problem analysis
Describing social problems
Case studies
Research Designs for Testing Bivariate Hypotheses
The validity of causal research
The Experiment
Cross sectional studies
Interrupted time series
Sampling
Units of analysis and units of observation
Types of data collection methods
Measurement level of Variables
Measurement Validity and Reliability
Measurement reliability
Measurement validity
Operationalization and Measurement
Indices, scales and typologies
Factor analysis and factor loadings
Factor analysis with more than one factor
Selecting factors in factor analysis
Rotating factors in factor analysis
Interpreting factor loadings in factor analysis
Doing factor analysis
Data Collection - Survey
Data Collection - Types of survey questions
Data Collection - Improving survey questions
Data Collection - Further improving survey questions
Content analysis
Non comparative content analysis
Observation
Interviews
Validity and reliability threats in interviews
Scale construction
Item writing
Pilot testing a scale
Assessing scale quality
Classical test theory and reliability
Cronbach's alpha
Test re-test reliability
Identifying problematic scale items
Latent traits and items
Item characteristic curves
Dealing with dichotomous outcomes
Checking a measurement instrument
Guttman models
Computerized Adaptive testing (CAT)
Interpreting bivariate tables
The effect of Third Variables: general
The effect of Third Variables: confounding
The effect of Third Variables: interpretation
The effect of Third Variables: modification
The effect of Third Variables: addition
Analyzing trivariate tables: general
Analyzing trivariate tables: confounding
introduction SPSS
(Broad format) data matrix
Missing values
SPSS for absolute beginners
A data matrix in SPSS
Frequency tables
Cross tabs (making a cross tab)
Recoding and creating a variable
Changing variables in SPSS using recode
Merging data files
Ethics in research
Confirmation bias
Central tendency: mode, median and mean
IQR and box plot
Variance and standard deviation
Z-scores