“…Studies in meta-analysis: Ahmed et al, (2013, Aksoy at el. (2018), Bridges and Mann (2019), Bryson (2017), Carpenter and Eppink (2017), Cerf (2016), Chai andMaroto (2020), Dilmaghani (2018), Drydakis (2012), Hammarstedt et al (2015), Humpert (2016), Jepsen and Jepsen (2017), Jepsen and Jepsen (2020), La Nauze (2015), Laurent and Mihoubi (2012), Martell (2013), Mize (2016), Preston et al, (2020), Sabia (2014), Sabia (2015), Sabia et al (2017), Waite (2015), Waite et al (2020), Wang et al (2018) 2010 (i.e., 2011-2014); 0= In all the other cases, that is, data sets covering periods before 2010 (i.e., 1991-2000), and/or data sets covering simultaneous periods before and after 2010 (i.e., 2008-2012) 2018), Bridges and Mann (2019), Bryson (2017), Carpenter and Eppink (2017), Cerf (2016), Chai andMaroto (2020), Dilmaghani (2018), Drydakis (2012), Hammarstedt et al (2015), Humpert (2016), Jepsen and Jepsen (2017), Jepsen and Jepsen (2020), La Nauze (2015), Laurent and Mihoubi (2012), Martell (2013)<...>…”