Supplement 6. Comparison of items on disadvantages and benefits according to the journals' and respondents' characteristics Supplement 6-1. Comparison of 7 items on disadvantages according to the academic classification Two-Way Repeated Measures ANOVA Variable: Row - CLASS Col - S12_1 To S12_7 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 6 84.88 14.15 1.23 Subject 65 747.95 11.51 Within Subjects Col Factor 6 58.66 9.78 8.87 Interaction 36 37.54 1.04 0.95 Residual 390 429.80 1.10 Total 503 1358.83 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 2.24 P Value: P = 0.3029 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.12 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 1.45 P Value: P = 0.5610 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: CLASS Subgroup Name: S12_1 To S12_7 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total CLASS - 1 S12_1 4 3.25 0.50 0.25 13.00 S12_2 4 3.25 0.96 0.48 13.00 S12_3 4 4.50 1.29 0.65 18.00 S12_4 4 4.50 1.00 0.50 18.00 S12_5 4 3.75 1.71 0.85 15.00 S12_6 4 4.75 0.96 0.48 19.00 S12_7 4 3.25 0.96 0.48 13.00 CLASS - 2 S12_1 11 4.55 1.51 0.45 50.00 S12_2 11 4.82 1.83 0.55 53.00 S12_3 11 4.91 1.70 0.51 54.00 S12_4 11 4.91 1.97 0.59 54.00 S12_5 11 4.55 1.63 0.49 50.00 S12_6 11 5.73 1.27 0.38 63.00 S12_7 11 3.82 1.78 0.54 42.00 CLASS - 3 S12_1 12 3.42 1.44 0.42 41.00 S12_2 12 3.17 1.47 0.42 38.00 S12_3 12 3.67 1.30 0.38 44.00 S12_4 12 4.08 1.44 0.42 49.00 S12_5 12 3.58 1.31 0.38 43.00 S12_6 12 4.50 1.93 0.56 54.00 S12_7 12 4.25 1.86 0.54 51.00 CLASS - 4 S12_1 5 5.20 0.84 0.37 26.00 S12_2 5 5.20 0.45 0.20 26.00 S12_3 5 5.20 1.10 0.49 26.00 S12_4 5 5.20 0.45 0.20 26.00 S12_5 5 4.40 0.55 0.24 22.00 S12_6 5 5.60 1.34 0.60 28.00 S12_7 5 4.80 1.48 0.66 24.00 CLASS - 5 S12_1 31 4.61 1.71 0.31 143.00 S12_2 31 4.58 1.34 0.24 142.00 S12_3 31 4.97 1.66 0.30 154.00 S12_4 31 4.71 1.68 0.30 146.00 S12_5 31 4.74 1.67 0.30 147.00 S12_6 31 5.42 1.43 0.26 168.00 S12_7 31 4.16 1.97 0.35 129.00 CLASS - 6 S12_1 5 5.00 2.00 0.89 25.00 S12_2 5 4.80 1.92 0.86 24.00 S12_3 5 4.60 2.07 0.93 23.00 S12_4 5 4.60 2.30 1.03 23.00 S12_5 5 5.40 2.07 0.93 27.00 S12_6 5 5.60 2.07 0.93 28.00 S12_7 5 4.00 2.55 1.14 20.00 CLASS - 8 S12_1 4 5.50 1.29 0.65 22.00 S12_2 4 5.25 1.26 0.63 21.00 S12_3 4 4.75 1.50 0.75 19.00 S12_4 4 4.50 0.58 0.29 18.00 S12_5 4 4.75 1.50 0.75 19.00 S12_6 4 5.25 0.96 0.48 21.00 S12_7 4 4.00 2.16 1.08 16.00 Academic Classification 1. Humanity 2. Social science 3. Natural science 4. Engineering 5. Medicine 6. Agriculture and fisheries 7. Arts and sports science -->none participated in. 8. Multi-disciplinary science Item content for the shortness of the data sharing * 12. To what extent do you consider data-sharing policies to be a disadvantage or concern in running a journal? 1 Strongly disagree (I am not concerned about this potential disadvantage or concern). 7 Strongly agree (I am concerned about this potential disadvantage or concern). 1) I'm afraid that publicizing the data will decrease the number of manuscripts submitted. 2) Contributors don't want their data publicly available. 3) I collect the data but am unsure how to deposit it. 4) I'm concerned about the reliability of the depository or platform once I receive the data. 5) I'm concerned that implementing a data-sharing policy will be costly. 6) The workload of editors or editorial staff will increase after implementing a data-sharing policy. 7) I am unsure if I can contribute to the advancement of the journal by releasing the data. Supplement 6-2. Comparison of 5 items on benefits according to the academic classification Two-Way Repeated Measures ANOVA Variable: Row - CLASS Col - M13_1 To M13_5 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 6 18.77 3.13 0.41 Subject 65 500.09 7.69 Within Subjects Col Factor 4 25.82 6.46 10.67 Interaction 24 16.87 0.70 1.16 Residual 260 157.31 0.61 Total 359 718.86 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 2.24 P Value: P = 0.8720 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.41 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 1.56 P Value: P = 0.2777 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: CLASS Subgroup Name: M13_1 To M13_5 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total CLASS - 1 M13_1 4 5.00 1.41 0.71 20.00 M13_2 4 4.75 0.96 0.48 19.00 M13_3 4 4.50 1.29 0.65 18.00 M13_4 4 5.00 0.82 0.41 20.00 M13_5 4 4.50 1.29 0.65 18.00 CLASS - 2 M13_1 11 5.00 1.34 0.40 55.00 M13_2 11 5.36 1.29 0.39 59.00 M13_3 11 4.91 1.38 0.41 54.00 M13_4 11 5.45 1.29 0.39 60.00 M13_5 11 5.00 1.18 0.36 55.00 CLASS - 3 M13_1 12 4.42 1.56 0.45 53.00 M13_2 12 4.92 1.62 0.47 59.00 M13_3 12 4.75 1.48 0.43 57.00 M13_4 12 4.50 1.83 0.53 54.00 M13_5 12 4.25 1.60 0.46 51.00 CLASS - 4 M13_1 5 4.20 1.92 0.86 21.00 M13_2 5 5.80 1.30 0.58 29.00 M13_3 5 4.80 1.30 0.58 24.00 M13_4 5 5.00 2.12 0.95 25.00 M13_5 5 5.40 1.14 0.51 27.00 CLASS - 5 M13_1 31 4.55 1.29 0.23 141.00 M13_2 31 5.65 0.95 0.17 175.00 M13_3 31 5.42 1.15 0.21 168.00 M13_4 31 5.23 1.20 0.22 162.00 M13_5 31 4.81 1.54 0.28 149.00 CLASS - 6 M13_1 5 5.20 1.64 0.73 26.00 M13_2 5 5.20 1.92 0.86 26.00 M13_3 5 5.00 2.12 0.95 25.00 M13_4 5 5.20 1.79 0.80 26.00 M13_5 5 4.80 2.17 0.97 24.00 CLASS - 8 M13_1 4 4.00 1.83 0.91 16.00 M13_2 4 4.75 1.89 0.95 19.00 M13_3 4 5.00 1.41 0.71 20.00 M13_4 4 5.00 2.00 1.00 20.00 M13_5 4 4.50 1.91 0.96 18.00 Supplement 6-3. Comparison of 7 items on disadvantages according to role in journal publishing Two-Way Repeated Measures ANOVA Variable: Row - CLASS Col - S12_1 To S12_7 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 6 84.88 14.15 1.23 Subject 65 747.95 11.51 Within Subjects Col Factor 6 58.66 9.78 8.87 Interaction 36 37.54 1.04 0.95 Residual 390 429.80 1.10 Total 503 1358.83 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 2.24 P Value: P = 0.3029 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.12 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 1.45 P Value: P = 0.5610 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: CLASS Subgroup Name: S12_1 To S12_7 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total CLASS - 1 S12_1 4 3.25 0.50 0.25 13.00 S12_2 4 3.25 0.96 0.48 13.00 S12_3 4 4.50 1.29 0.65 18.00 S12_4 4 4.50 1.00 0.50 18.00 S12_5 4 3.75 1.71 0.85 15.00 S12_6 4 4.75 0.96 0.48 19.00 S12_7 4 3.25 0.96 0.48 13.00 CLASS - 2 S12_1 11 4.55 1.51 0.45 50.00 S12_2 11 4.82 1.83 0.55 53.00 S12_3 11 4.91 1.70 0.51 54.00 S12_4 11 4.91 1.97 0.59 54.00 S12_5 11 4.55 1.63 0.49 50.00 S12_6 11 5.73 1.27 0.38 63.00 S12_7 11 3.82 1.78 0.54 42.00 CLASS - 3 S12_1 12 3.42 1.44 0.42 41.00 S12_2 12 3.17 1.47 0.42 38.00 S12_3 12 3.67 1.30 0.38 44.00 S12_4 12 4.08 1.44 0.42 49.00 S12_5 12 3.58 1.31 0.38 43.00 S12_6 12 4.50 1.93 0.56 54.00 S12_7 12 4.25 1.86 0.54 51.00 CLASS - 4 S12_1 5 5.20 0.84 0.37 26.00 S12_2 5 5.20 0.45 0.20 26.00 S12_3 5 5.20 1.10 0.49 26.00 S12_4 5 5.20 0.45 0.20 26.00 S12_5 5 4.40 0.55 0.24 22.00 S12_6 5 5.60 1.34 0.60 28.00 S12_7 5 4.80 1.48 0.66 24.00 CLASS - 5 S12_1 31 4.61 1.71 0.31 143.00 S12_2 31 4.58 1.34 0.24 142.00 S12_3 31 4.97 1.66 0.30 154.00 S12_4 31 4.71 1.68 0.30 146.00 S12_5 31 4.74 1.67 0.30 147.00 S12_6 31 5.42 1.43 0.26 168.00 S12_7 31 4.16 1.97 0.35 129.00 CLASS - 6 S12_1 5 5.00 2.00 0.89 25.00 S12_2 5 4.80 1.92 0.86 24.00 S12_3 5 4.60 2.07 0.93 23.00 S12_4 5 4.60 2.30 1.03 23.00 S12_5 5 5.40 2.07 0.93 27.00 S12_6 5 5.60 2.07 0.93 28.00 S12_7 5 4.00 2.55 1.14 20.00 CLASS - 8 S12_1 4 5.50 1.29 0.65 22.00 S12_2 4 5.25 1.26 0.63 21.00 S12_3 4 4.75 1.50 0.75 19.00 S12_4 4 4.50 0.58 0.29 18.00 S12_5 4 4.75 1.50 0.75 19.00 S12_6 4 5.25 0.96 0.48 21.00 S12_7 4 4.00 2.16 1.08 16.00 6-4. Comparison of 5 items on benefits according to role in journal publishing Two-Way Repeated Measures ANOVA Variable: Row - ROLE Col - M13_1 To M13_5 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 1 0.44 0.44 0.06 Subject 70 518.42 7.41 Within Subjects Col Factor 4 25.82 6.46 10.44 Interaction 4 1.10 0.28 0.45 Residual 280 173.08 0.62 Total 359 718.86 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 3.98 P Value: P = 0.8081 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.40 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 2.40 P Value: P = 0.7755 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: ROLE Subgroup Name: M13_1 To M13_5 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total ROLE - 1 M13_1 55 4.65 1.53 0.21 256.00 M13_2 55 5.35 1.39 0.19 294.00 M13_3 55 5.09 1.47 0.20 280.00 M13_4 55 5.16 1.51 0.20 284.00 M13_5 55 4.75 1.60 0.22 261.00 ROLE - 2 M13_1 17 4.47 1.01 0.24 76.00 M13_2 17 5.41 0.87 0.21 92.00 M13_3 17 5.06 0.75 0.18 86.00 M13_4 17 4.88 1.22 0.30 83.00 M13_5 17 4.76 1.15 0.28 81.00 6-5.Comparision of 7 items of shortness according to the adoption of open access policy Two-Way Repeated Measures ANOVA Variable: Row - OA Col - S12_1 To S12_7 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 1 0.62 0.62 0.05 Subject 70 832.21 11.89 Within Subjects Col Factor 6 58.66 9.78 8.96 Interaction 6 9.08 1.51 1.39 Residual 420 458.26 1.09 Total 503 1358.83 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 3.98 P Value: P = 0.8200 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.12 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 2.12 P Value: P = 0.2185 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: OA Subgroup Name: S12_1 To S12_7 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total OA - 1 S12_1 64 4.50 1.61 0.20 288.00 S12_2 64 4.44 1.49 0.19 284.00 S12_3 64 4.70 1.64 0.20 301.00 S12_4 64 4.59 1.63 0.20 294.00 F12_5 64 4.47 1.64 0.21 286.00 S12_6 64 5.27 1.57 0.20 337.00 S12_7 64 4.00 1.83 0.23 256.00 OA - 2 S12_1 8 4.00 1.69 0.60 32.00 S12_2 8 4.13 1.96 0.69 33.00 S12_3 8 4.63 1.30 0.46 37.00 S12_4 8 5.00 1.20 0.42 40.00 F12_5 8 4.63 1.30 0.46 37.00 S12_6 8 5.50 0.93 0.33 44.00 S12_7 8 4.88 1.96 0.69 39.00 6-6. Comparison of 5 items on benefits according to the adoption of an open-access policy Two-Way Repeated Measures ANOVA Variable: Row - OA Col - M13_1 To M13_5 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 1 1.09 1.09 0.15 Subject 70 517.78 7.40 Within Subjects Col Factor 4 25.82 6.46 10.44 Interaction 4 1.02 0.25 0.41 Residual 280 173.16 0.62 Total 359 718.86 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 3.98 P Value: P = 0.7024 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.40 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 2.40 P Value: P = 0.8011 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: OA Subgroup Name: M13_1 To M13_5 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total OA - 1 M13_1 64 4.61 1.47 0.18 295.00 M13_2 64 5.36 1.31 0.16 343.00 M13_3 64 5.11 1.38 0.17 327.00 M13_4 64 5.13 1.44 0.18 328.00 M13_5 64 4.80 1.51 0.19 307.00 OA - 2 M13_1 8 4.63 1.06 0.38 37.00 M13_2 8 5.38 1.06 0.38 43.00 M13_3 8 4.88 0.83 0.30 39.00 M13_4 8 4.88 1.55 0.55 39.00 M13_5 8 4.38 1.41 0.50 35.00 6-7. Comparison of 7 items on disadvantages according to the adoption of a data-sharing policy Two-Way Repeated Measures ANOVA Variable: Row - POLICY Col - S22_1 To S22_5 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 1 43.85 43.85 7.56 Subject 70 406.14 5.80 Within Subjects Col Factor 4 55.82 13.96 11.34 Interaction 4 2.66 0.66 0.54 Residual 280 344.72 1.23 Total 359 853.20 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 3.98 P Value: P = 0.0076 Decision: All group means are not equal. < Comparison of Column Factors > Significance (0.05): F = 2.40 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 2.40 P Value: P = 0.7069 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: POLICY Subgroup Name: S22_1 To S22_5 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total POLICY - 1 S22_1 20 4.25 1.83 0.41 85.00 S22_2 20 3.70 1.53 0.34 74.00 S22_3 20 4.60 1.54 0.34 92.00 S22_4 20 3.55 1.67 0.37 71.00 S22_5 20 3.35 1.63 0.36 67.00 POLICY - 2 S22_1 52 4.87 1.30 0.18 253.00 S22_2 52 4.81 1.33 0.18 250.00 S22_3 52 5.17 1.41 0.20 269.00 S22_4 52 4.40 1.51 0.21 229.00 S22_5 52 4.10 1.40 0.19 213.00 6-8. Comparison of 5 items on benefits according to the adoption of a data sharing policy Two-Way Repeated Measures ANOVA Variable: Row - POLICY Col - M23_1 To M23_4 -------------------------------------------------------------------------- Two-Way Repeated Measures ANOVA Source Degree Sum Squares Mean Square F Ratio Between Subjects Row Factor 1 1.64 1.64 0.29 Subject 70 399.36 5.71 Within Subjects Col Factor 3 23.26 7.75 10.53 Interaction 3 1.93 0.64 0.87 Residual 210 154.56 0.74 Total 287 580.75 Analysis of Variance Table < Comparison of Row Factors > Significance (0.05): F = 3.98 P Value: P = 0.5940 Decision: All group means may be equal. < Comparison of Column Factors > Significance (0.05): F = 2.65 P Value: P = 0.0000 Decision: All group means are not equal. < Interaction between two factors > Significance (0.05): F = 2.65 P Value: P = 0.4551 Decision: Interaction between factors is NOT significant. Descriptive Statistics Group Name: POLICY Subgroup Name: M23_1 To M23_4 -------------------------------------------------------------------------- Group Number Mean S.D. S.E. Total POLICY - 1 M23_1 20 4.25 1.71 0.38 85.00 M23_2 20 4.80 1.54 0.34 96.00 M23_3 20 5.20 1.40 0.31 104.00 M23_4 20 4.50 1.73 0.39 90.00 POLICY - 2 M23_1 52 4.08 1.23 0.17 212.00 M23_2 52 4.58 1.42 0.20 238.00 M23_3 52 4.81 1.31 0.18 250.00 M23_4 52 4.62 1.33 0.18 240.00