Exact(5)
The loadings for each method factor were constrained equal under the assumption that a method effect should exert a relatively equal influence on all items, but also in order to maximize degrees of freedom given the medium sample size.
(2013) and Vanhoutte (2014) have indicated that there is a method effect in the CASP scale, and a revised CASP instrument with residual covariances for the negatively worded items (method factor) should be included.
In a cross-country comparison of primarily Western countries, Gandek et al[ 20] attributed the substantial correlations observed to a "method effect" due to the different constructions of some of the items in the two scales.
Also, studies have found a method effect in the CASP scale and allowing error correlations between negatively worded items led to significant improvement in model fit (Sexton et al., 2013; Vanhoutte, 2014).
Thus, there was a risk that this assumption of local independence would not hold either because the response related to a particular area of specialised knowledge or the stem question posed was asked in a particular way (i.e. a method effect).
Similar(55)
We therefore presume that the patients not choosing depression may have been a method-effect, and it cannot be ruled out that this domain is in fact relevant to patients with COPD.
For instance, there was a substantive method effect associated with the negatively worded items in the mathematics self-confidence and like mathematics constructs.
This finding provides further evidence for the assertion that a likely method effect underpins the distinction between these sets of positively- and negatively-valanced items [ 29].
To test for a confounding effect of the different response scales (an instrument "method" effect), we included orthogonal method factors for the MFQ and the RCMAS scales.
With this distinction, we wanted to reduce the risk of overlooking or not detecting a truly existing method effect between the procedures.
AT is usually taught in one-to-one sessions, and since it is considered a re-educational method, effects would only be expected after several sessions.
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