Table 6 A Summary of the ‘how’ studies that included contextual variables in the analyses

 Was the strength of the opposition considered?

[85]

[68, 71, 83, 84, 93, 94]

 Was the match location considered?

[71, 84, 85, 93, 94]

[68, 83]

 Were environmental factors considered?

[68]

[71, 83,84,85, 93, 94]

 Was there a comparison between outcomes?

[71, 84, 85]

[68, 83, 93, 94]

 Were the playing positions considered?

[68, 71, 83,84,85, 93, 94]

 Was the strength of the opposition considered?

[54, 72, 102, 103]

[11, 12, 16, 17, 19, 53, 62, 65, 76, 88, 101, 104, 109]

 Was the match location considered?

[53, 103]

[11, 12, 16, 17, 19, 54, 62, 65, 72, 76, 101, 102, 104, 109]

[88]

 Were environmental factors considered?

[11, 12, 16, 17, 19, 53, 54, 62, 65, 72, 76, 88, 101,102,103,104, 109]

 Was there a comparison between outcomes?

[12, 16, 17, 19, 53, 54, 62, 65, 72, 76, 88, 101,102,103]

[11, 104, 109]

 Were the playing positions considered?

[16, 19, 54, 76, 101, 103, 104]

[12, 17, 53, 62, 65, 72, 88, 102]

[11, 109]

 Was the field location of the events considered?

[11, 12, 17, 19, 54, 101,102,103, 109]

[16, 53, 62, 65, 72, 76, 88, 104]

 Was there specific information relating to the playing situation of the assessed variables?

[16, 17, 54, 62, 72, 76, 88, 102, 103, 109]

[11, 12, 19, 53, 65, 101, 104]

 Was the strength of the opposition considered?

[10, 60, 61, 63, 69, 70, 73, 74, 112,113,114]

 Were environmental factors considered?

[69]

[10, 60, 61, 63, 70, 73, 74, 112,113,114]

 Was there a comparison between outcomes?

[61, 63, 69, 73, 74, 113, 114]

[10, 60, 70, 112]

 Were the playing positions considered?

[61, 69, 73, 74, 112]

[10, 60, 63, 70, 113, 114]

 Was there specific information relating to the playing situation of the assessed variables?

[10, 60, 61, 63, 69, 73, 74]

[70, 112,113,114]

 Was technique assessed?

[60, 63, 69, 74, 112,113,114]

[10, 61, 70, 73]