highly significantp > 0.05
The results showed that the effect of BPNS on hyper-competitiveness continued to strengthen and became highly significant (from B simple = − 0.02, t = − 0.19, p > 0.05 to B simple = − 0.22, t = − 2.92, p < 0.01) with increasing levels of mother-child attachment, ie, higher levels of mother-child attachment enhanced the predictive effect of on BPNS on hyper-competitiveness ( Figure 3 ).