The experiment analyzed reactions of 115 first-to fourth-graders after realizing that they performed worse than they expected in a computer game. Based on the VIOLEX model of expectation violation, we assessed immunization against achievement feedback, assimilation (striving to increase performance), and accommodation (willingness for expectation change). Students decreased their expectations for the next round of the game after getting feedback indicating that they performed worse than expected, and younger students decreased their expectation more than older students did. After giving them some time for thinking about their achievement (and for finding potential excuses for the lower-than-expected performance), younger students slightly increased their expectation, while older students showed a further drop in expectation. Analyses of verbal responses showed that immunizing against the discrepant feedback was followed by an increase in expectations, whereas assimilative and accommodative tendencies did not predict persistence and change in expectations. Conclusions are drawn for future research.

Abstract. We analyzed grade level and sex differences for changes in expectations and coping with expectation violations, based on the ViolEx model. A sample of 114 third to sixth graders (male, n = 44, 38.6 %; female, n = 70, 61.4 %) reported their expected achievement in trials with no feedback, worse-than-expected achievement feedback, and better-than-expected feedback. Expectations improved across the no-feedback and better-than-expected feedback trials, and deteriorated across worse-than-expected trials. While expectation change did not vary by grade level or sex, reported coping with expectation violation did vary, and pupils of younger years reported higher attempts to fulfill their expectations (assimilative behavior). Immunization against worse-than-expected feedback was associated with higher expectations in the negative-feedback condition, but protective effects of immunization were lost with an increasing number of expectation violations. In addition, higher willingness to reduce one’s expectations (accommodation) inhibited the update of expectations after receiving better-than-expected feedback. Conclusions for future research are drawn.