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Table 1 Cognitive process models of Tourangeau et al. and Rapkin & Schwartz

From: A 'short walk' is longer before radiotherapy than afterwards: a qualitative study questioning the baseline and follow-up design

Tourangeau et al.

- survey answering model -

Rapkin & Schwartz

- QoL appraisal model -

Example interview probes

Comprehension

Frame of reference

What does [target construct in item, e.g. quality of life] mean to you?

Retrieval

Sampling strategy

Can you tell me how you came to think of [aspect mentioned by respondent]?

 

Standards of comparison

Did you compare yourself to someone or something?

Judgment

Combinatory algorithm

How did you arrive at your response?

Reporting and response selection

 

Can you tell me why you choose the selected response category?