Table 1 Definitions of independent variables.
From: The interplay between positive lifestyle habits and academic excellence in higher education
Variable Name | Variable | Variable Unit | Variable Definition |
|---|---|---|---|
Mealtime stability coefficient | MSC | / | \({MSC}=\tfrac{{\sum }_{=1}^{n}{{MT}}_{{{sd}}_{i}}\times {N}_{{m}_{i}}}{{\sum }_{i=1}^{n}{N}_{{m}_{i}}}\) \({{MT}}_{{{sd}}_{i}}=\sqrt{\tfrac{1}{N}{\sum }_{j=1}^{n}{({T}_{j}-\bar{T})}^{2}}\) N denotes the total number of meals in a given meal category, Tj denotes the dining time for the jth meal in that category, \(\bar{T}\) denotes the average dining time for that meal category, and \({N}_{{m}_{i}}\) denotes the total number of meals for the ith meal category (similarly, without i, it refers to a specific meal category). |
Early rising coefficient | Vbre | / | \({V}_{{bre}}=\tfrac{{N}_{m}}{\tfrac{{M}_{t}-{T}_{\min }}{{T}_{\max }-{T}_{\min }}}\) \({T}_{\max }\) denotes the student’s latest breakfast time, set at 10. Tmin denotes the student’s earliest breakfast time, set at 5. Mt denotes the student’s average breakfast time during the year. |
Restaurant counter selection | MTCL | / | \(M{T}_{{CL}}=\sqrt{\frac{1}{n}\mathop{\sum}\limits_{i=1}^{n}{(C{L}_{i}-\overline{{CL}})}^{2}}\) CLi is the logarithm of the number of times a student swipes their card at counter i, \(\overline{{CL}}\) is the average logarithm of the number of times a student swipes their card at the counter, and n is the number of counters at which a student has made purchases. |
Restaurant consumption level | RCL | / | \({RCL}=\tanh \tfrac{\mathop{\sum}\limits_{i=1}^{n}({{MC}}_{i}-\overline{{MC}})\times {N}_{{m}_{i}}}{\mathop{\sum }\limits_{i=1}^{n}{N}_{{m}_{i}}}\) MCi denotes the average meal cost for the ith meal category, and \(\overline{{MC}}\) denotes the average cost for all meal categories. |
Restaurant consumption stability | RCS | / | \({RCS}=\tanh \tfrac{{\sum }_{i=1}^{n}({{MC}}_{s{d}_{i}}-{\overline{{{MC}}_{{sd}}}})\times {N}_{{m}_{i}}}{{\sum }_{i=1}^{n}{N}_{{m}_{i}}}\) \({{MC}}_{s{d}_{i}}\) is the standard deviation of meal costs for the ith meal category; \(\overline{{{MC}}_{{sd}}}\) is the standard deviation of meal costs for all meal categories. |
Average bathing frequency | ABF | times/month | Average number of baths per month. |
Average bathing time | ABT | minute | Average bathing time. |
Average library arrival frequency | LFR | times/month | Average number of library visits per month. |
Average study duration | LTM | minute | Average time spent in the library per visit. |
