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Similarity and relatedness exert robust effects on memory, with related or semantically similar items showing a recall and recognition advantage relative to unrelated items (e.g., Cofer, Bruce, & Reicher, 1966; Kintsch, 1968; Roediger & McDermott, 1995).
Note: Only DAQ items showing a statistical significance in the comparison were presented.
The dimension self-esteem consists of four items showing a Cronbach's alpha of.61.
The dimension mental well-being/mood consists of four items showing a Cronbach's alpha of.56.
We conducted factor analysis to search for items showing a high level of commonality.
Exclusively, the items showing a substantial loading of >.30 on at least one factor were interpreted, i.e. non-hyperplane items (see [ 5], p.285; [ 7] p.130).
Similar(49)
Generally, items showing an item-total correlation of 0.3 or lower are considered to be dropped from the scale [ 27].
All items showed disordered thresholds, suggesting a problem with the response format, despite items showing an adequate number of cases in each response category (range=52 to 286).
Correlations between items showed a coherent pattern of interitem correlations.
The items show a good fit to the Rasch model.
Since the remaining items showed a sufficient fit (wMNSQ values between 0.79 and 1.26, absolute t values below 1.96), we accepted the model with 31 items.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com