lecture 4 Flashcards
Object of PSQ (aggregation and generalization)
what is your problem that you want to solve
optimize service no use of servqual
Single event/encounter or multiple experience
Specific organizational or component
Input - process = output
5 dimensions of PSQ
reliability
Empathy
Responsiveness
Assurance
Tangibles
Servqual super dimensions
Reliability
Assurance
Tangibles
Empathy
Responsiveness
Some of the dimensions overlap
PSQ scale (servqual)
22 Items on expectations and perceptions about 5 super dimensions that investigate using a 7 point likert scale
Types of construct PSQ servqual
attribute level (serqual items)
Global level (PSQ, satisfaction, loyalty; one or more items per construct, use same scale as on attribute level
Measuring socio-demographics
Measuring expectations
Choice of expectations significantly influences the PSQ of a service provider
Which expecations should be taken into account???
Sould (desired) ==> Will
Should ==> Telephone companies should keep their records accurately
Will ==> Telephone comany X will exist on error-free records
Shortcomings SERVQUAL (should we measure expectations as a whole in the survey)
People take expectations into account when asked for perception (attitude not disconfirmation)
Correlation between expectations and perceptions
-Increase in amount of items
-Consumers adjust the expectations
+Gives managerial information
If yes ==> when to measure them??
at different moments with different samples
ServPerf
service quality is more like an attitude
They say that we should only measure perception and not attitudes
Same questions just didnt do the questions once
The found out that construct validity is higher for SERVPERF and discriminant validity is higher for SERVPERF
Validity of Servqual
The existence of the 5 dimensions
Convergent validity ==> the extent to which scale items assumed to represent a construct do in fact converge on the same construct (+)
Discriminant validity ==> the extent to which SERVQUAL has five distinct dimensions (- overlap)
Predictive/concurrent validity ==> extennt to which SERVQUAL scores are associated as hypothesized with other conceptually related measures (r2) (+/-)
Points of criticism (servqual/servperf)
generalizability of items and dimensions (qualitative research to find attributes and dimensions)
Measuring importance:
direct: Importance measured in perception, weighted servqual leads to over estimation
Indirect:
Multicollinearity, regression based on factor analyses
Formulation of proposition
When you formulate a proposition use the same level of intention (adjectives) consistently
Dont use words with extreme values as “never” or “always”
use of tool (survey)
Use of likert scale
7 points or 5 or 9
Translation to 10 point scale not good (neutral center point, results in over estimation, people always bechoosing 3-8 because they know this scale)
Use of “not applicable” category, (otherwise middle chosen, or what if it asks for complaint and you dont have one)
Use of positive vs negative statement (problems in factor analyses; people may stay more alert but eh he likes all positive)
Structured or mixed item order (should similar questions be grouped; grouped they give similar answers ungrouped people get confused )
Halo effect
Example of servPerf
service quality is derived from:
Reliability, responsiveness, flexibility and more: –> adapted