PDF (PhD Thesis Susan Chipchase) - Nottingham eTheses ...

positive object pairs with item means (with standard deviation in parentheses)
of 3.40 (1.39), 4.09 (1.26) and 3.59 (1.32) respectively.
ii) Dimensions of change.
There were 405 pairs of photographs of objects rated for the dimensions
that could differ between the two items in the pair (colour, shape, size,
orientation) by two University of Nottingham students (2 female; Mean age:
27.50 years). A rating of 0 indicated that no change in a particular dimension
occurred (e.g., if both pumpkins were orange); a rating of 0.5 indicated a slight
change in a dimension (e.g., a light green pine tree versus a dark green pine
tree) and a rating of 1 indicated a substantial change (e.g., a red apple versus a
green apple). Average ratings of how these dimensions changed between the
items in a pair were comparable between the different emotional groups. The
item means (with standard deviations in parentheses) for negative, neutral and
positive object pairs were: for colour .46 (.34), .68 (.31) and .56 (.37); for
orientation .61 (.35), .55 (.34) and .55 (.37); for shape .44 (.29), .42 (.27) and
.38 (.28); and for size .21 (.24), .20 (.24) and .20 (.25) respectively.
iii) Size.
There were 405 photographs of objects (1 item from each pair) rated for
size by one University of Nottingham student (Female, 20 years). Thirty-eight
percent of all the experimental stimuli were judged to fit into a shoebox in real
life. This was similar across groups of negative (34 items), neutral (39 items)
and positive stimuli (38 items).
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