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Questionnaire Design & Analysis - Coggle Diagram
Questionnaire Design & Analysis
Reliability
Inter-item correlation - Cronbach's Alpha
Inter-rater reliability
Test-retest reliability
Factor analysis
PCA
Pilot test
Scale
Existing scales (Chapter 2) and notes for pros/cons
Additivity
Interval scale - go with Likert if not sure!
Validity
Face &
Content Validity
Think Aloud
Cognitive Interviewing
Pilot test
Construct validity
Predictive
Response formats
Likert
Forced choice
Yes/No
(continuous) Visual Analogue Scale
Weighted scale
Open/Closed
Semantic differentials
Data types
Interval
parametric, eg IQ
Ordinal
Nonparametric, eg Likert
Categorical/nominal
Nonparametric
Think about...
Periodical q's
Response biases
Social desirability bias
Acquiescence bias (middle option)
Sampling, size & power
Sampling types
chptr 4
Random/quasi random
Purposeful
Snowballing
Convenience
Analysis
Descriptive
Chi Square
How many?
Count differences
Analytic
Likert
Correlation
Item analysis
Looking for large item variance to show difference
Remove poor questions
Ensure good correlations (i.e. Validity)
Reliability
Allows removal of questions that reduce reliability
Similar score each time administrated (internal consistency) – Cronbach‘s alpha
Hypotheses testing