Table 1 Experimental design of the selected studies

Cheng

2018

[31]

2

1

1

0

Innes

2018

[32]

2

1

1

0

Kwok

2013

[33]

2

1

1

0

Oh

2018

[34]

3

1

1

1

Pereira-Morales

2018

[35]

3

2

1

0

Small

2006

[36]

2

1

0

1

Smart

2016

[37]

2

1

1

0

Barnes

2013

[38]

4

3

1

0

Boa Sorte Silva

2018

[39]

2

1

1

0

Fabre

1999

[40]

4

3

0

1

Lautenschlager

2008

[41]

2

1

1

0

Andrewes

1996

[42]

2

1

1

0

Cohen-Mansfield

2015

[43]

3

1

2

0

Fairchild & Scogin

2010

[44]

2

1

0

1

Frankenmolen

2018

[45]

2

1

1

0

Hoogenhout

2012

[46]

2

1

0

1

McEwen

2018

[47]

2

1

1

0

Pike

2018

[48]

3

2

1

0

Scogin

1985

[49]

2

1

0

1

Valentijn

2005

[50]

3

2

0

1

van Hooren

2007

[51]

2

1

0

1

Youn

2011

[52]

2

1

0

1