This Registered Report provides the first measurement invariance across time points and test-retest reliability of the Social Thermoregulation, Risk Avoidance Questionnaire (STRAQ-1, Vergara et al., 2019). The scale was developed and validated to understand the physiological drives underlying interpersonal bonding, measured by four constructs: the desire to socially regulate one’s temperature, the desire to solitary regulate one’s temperature, the sensitivity to higher temperatures, and the desire to avoid risk. Previous studies with large samples across 12 countries showed that the STRAQ-1 has a stable factorial structure, satisfying internal consistencies for the temperature subscales, and expected correlations in its nomological network. However, to date, this instrument has no test-retest reliability. Throughout four academic years (from 2018 to 2021), N = 184 French student participants took the STRAQ-1 at least two times. Out of the four STRAQ-1 subscales, X were longitudinally [non-invariant/invariant] across two-time points. The constructs and latent scores were thus [dissimilar/similar] and [incomparable/comparable] across time. [If measures were invariant: We then conducted test-retest reliability using Intra Class Correlation coefficient (ICC) for Social Thermoregulation, Solitary Thermoregulation, High-Temperature Sensitivity, and Risk Avoidance, only those will be included that are invariant]. ICCs were XX [excellent/good/moderate/poor], XX [excellent/good/moderate/poor], XX [excellent/good/moderate/poor], and XX [excellent/good/moderate/poor], respectively. [If measures turned out to be non-invariant: We did not find evidence of the stability of the STRAQ-1 across time]. [Despite/Possibly due to] the relatively long time between the repeated measure (minimum one year), we [found/did not find] acceptable test-retest reliability of the scale, and relative [in]stability of the STRAQ-1 across time.