R Code for calculating predicted values and effect sizes in the 2x2 Model of Perfectionism (main effects model).

R code to calculate predicted values for subtypes of perfectionism in the 2x2 Model of Perfectionism (Gaudreau &amp; Thompson, 2010) based on a main effects model (no interaction term). Effect sizes (Cohen's <i>d</i>) are also calculated to test the hypotheses of the model based on equations in Gaudreau (2012).Gaudreau, P. (2012). A methodological note on the interactive and main effects of dualistic personality dimensions: An example using the 2× 2 model of perfectionism. <i>Personality and Individual Differences,</i><i> </i><i>52 </i>(1), 26-31. https://doi.org/10.1016/j.paid.2011.08.022Gaudreau, P., &amp; Thompson, A. (2010). Testing a 2×2 model of dispositional perfectionism. <i>Personality and Individual Differences, 48</i>(5), 532–537. https://doi.org/10.1016/j.paid.2009.11.031<br><br><br>本R代码用于基于主效应模型（无交互项），计算完美主义2×2模型（2x2 Model of Perfectionism，Gaudreau与Thompson, 2010）中各完美主义亚型的预测值。同时还将依据Gaudreau（2012）提出的公式，计算效应量科恩d值（Cohen's d），以检验该模型的相关研究假设。 Gaudreau, P. (2012). 二元人格维度的交互效应与主效应方法学注记：以完美主义2×2模型为例。《人格与个体差异（Personality and Individual Differences）》，52(1)，26-31。https://doi.org/10.1016/j.paid.2011.08.022 Gaudreau, P. 与 Thompson, A. (2010). 特质性完美主义2×2模型的检验。《人格与个体差异（Personality and Individual Differences）》，48(5)，532–537。https://doi.org/10.1016/j.paid.2009.11.031