R. Amsel et Cs. Fichten, RECOMMENDATIONS FOR SELF-STATEMENT INVENTORIES - USE OF VALENCE, END-POINTS, FREQUENCY, AND RELATIVE FREQUENCY, Cognitive therapy and research, 22(3), 1998, pp. 255-277
Methodological confounds and Inconsistencies in evaluations of self-st
atements hamper exploration of conceptual issues in cognitive assessme
nt. Although many measures incorporate both positives and negatives, t
here is confusion in reporting; raw frequencies, difference scores, pr
oblematic ratios (positive/negative, negative/positive), and States-of
-Mind (SOM) ratios are all used. Here, we examine methodological issue
s in evaluations of valenced self-statements in two studies and formul
ate empirically based guidelines for common usage. Our findings clearl
y indicate that (a) valenced thought frequencies and SOM ratios yield
different information (b) in SOM ratio calculations inventory scale en
d points should always start at 0, (c) if scales do not start at 0, sc
ores can be converted mathematically, and (d) the higher the SOM score
, the better the individual's adaptation on various criterion measures
; this includes even extremely positive SOMs (0.91-1). Thus, SOMs are
monotonic and can be used in statistical analyses without transformati
on.