Takada, A., Nakamura, R., Furukawa, M., Takahashi, Y., Nishimura, S. & Kosugi, S. (2011) The relationship between weight loss and time and risk preference parameters: a randomized controlled trial. Journal of Biosocial Science 43(4), 481–503.
In this article the Cohen's d values are incorrect in Tables 3 and 6, and in the text on p. 10, line 17. The corrected tables are given below.
In addition, on p. 8, lines 7–12, the incorrect participant percentages are given. The values are correct in Table 2.
Page 7, line 7, should read: The primary analysis was based on treatment analysis.
Note: change score=post-treatment score minus baseline score.
p-value: comparison between baseline and 8 weeks or 16 weeks (24 weeks).
Cohen's d: effect size between groups.
a With 16 items (at a range of 0–16). A higher score indicates a higher degree of self-efficacy.
b With 10 items (at a range of 0–50). The more merits and demerits gained, the higher the scores.
c PCS: physical component summary; MCS: mental component summary. A higher score indicates a better statement of the HQOL.
d The time effect represents the results of the GLM repeated measure analysis for the difference between baseline, 8 week and 16 week values of each variables in the entire study population.
e The time×group effect represents the results of the GLM repeated measure analysis assessing whether the trend of change in each variable differed among the groups.
Change score=post-treatment score minus baseline score.
p-value: comparison between baseline and 8 weeks or 16 weeks.
Cohen's d: effect size between groups.
T1(T2)–loss=time discounting T1(T2) loss group.
{(Baseline time discounting T1(T2))–(time discounting T1(T2) after 24 weeks)} >0.
No-T1(T2)–loss=no time discounting T1(T2) loss group.
{(Baseline time discounting T1(T2))–(time discounting T1(T2) after 24 weeks)} ≤0.
Risk aversion R1(R2)–gain=risk aversion R1(R2) gain group.
{(risk aversion R1(R2) after 24 weeks)–(baseline risk aversion R1(R2))} >0.
No-R1(R2)–gain=no risk aversion R1(R2) gain group.
{(risk aversion R1(R2) after 24 weeks)–(baseline risk aversion R1(R2))} ≤0.