Abstract
In a field experiment with students, we show that a specific, difficult novelty goal, whether presented alone or in conjunction with brainstorming rules, improves novelty and creativity in individuals’ idea generation relative to brainstorming rules alone when goal commitment is high. Because creativity is often correlated with idea quantity in brainstorming studies, we controlled for idea quantity in order to demonstrate that the improvement is not due to changes in the number of ideas generated. These findings suggest that specific, difficult goals beyond quantity can improve idea generation. We also separately measured practicality and effectiveness of participants’ ideas. The results of these analyses suggest that goal commitment might be an important determinant of usefulness, and deserves additional attention in studies of idea generation.
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Notes
In the only prior study that we are aware of that carefully compares specific and vague creativity goals, Shalley (1991) did not find a main effect of goal specificity.
It is important to note that brainstorming researchers have differed among themselves in the degree to which they separate value-added from practicality (cf., Meadow et al. 1959; Sappington and Farrar 1982; Taylor et al. 1958). Also, brainstorming research has sometimes labeled combinations of novelty and usefulness “idea quality” rather than “creativity” (Mullen et al. 1991). For discussion of different quality metrics, see Reinig et al. 2007.
Creativity researchers have also used the number of ideas generated as an indicator of a person’s creative ability (e.g., Guilford 1957). Thus, when the focus of creativity measurement is a person, idea quantity can be viewed as a part of the creativity construct. However, when the focus of creativity measurement is a product (e.g., an idea), idea quantity is closely related to, but distinct from, the creativity construct.
Although no effects of brainstorming rules or novelty goals on idea quantity were expected in this study, some readers might nonetheless be curious about such connections. Because the brainstorming rules contain a vague quantity goal, one might wonder in particular whether conditions containing them would be likely to enhance idea quantity relative to a novelty goal presented alone. We tested this using multiple regression as in the other analyses, but with the novelty goal alone coded as the comparison condition. Supporting prior goal-based research (for discussion, see Litchfield 2009), we found no significant effects (F = .47, p > .79).
As reported, we used average creativity. Other research has advocated for the use of other measures such as the single most creative idea generated by each individual/group or the number of ideas meeting a given threshold for creativity (for discussion, see Reinig et al. 2007). For completeness, we conducted each of these analyses. We used the number of ideas rated at least 8/10 by the sum of raters as the threshold for the “good ideas” measure (57/959 ideas, or approximately the top 6%). These analyses returned the same pattern of results, but the effects tended to be stronger (for number creative, Adjusted R 2 = .14; for most creative, Adjusted R 2 = .21).
There is also evidence that individuals’ preferences for ideas might vary depending on whether they generate ideas alone or in a group (Putman and Paulus 2009).
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Litchfield, R.C., Fan, J. & Brown, V.R. Directing idea generation using brainstorming with specific novelty goals. Motiv Emot 35, 135–143 (2011). https://doi.org/10.1007/s11031-011-9203-3
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DOI: https://doi.org/10.1007/s11031-011-9203-3