Table 10 Non parametric test of screen time and learning strategy Score.

From: Influence of short video usage on adolescent’s learning strategies: investigation on teenagers in HeBei North China

 

Average screen time everyday in the last week (hr per day)

H value

Kruskal-Wallis

p

Around 1 h

(n = 1500)

Around 2 h

(n = 679)

Around 3 h

(n = 462)

Around 4 h

(n = 194)

Around 5 h

(n = 72)

Over 5 h

(n = 121)

Cognitive strategy

49.000

47.000

45.000

45.000

43.500

42.000

202.627

0.000**

Metacognitive Strategy

46.000

44.000

43.000

43.000

41.000

41.000

160.653

0.000**

Resource utilization strategy

53.000

51.000

49.000

48.000

47.500

46.000

209.078

0.000**

Total score

149.000

142.000

137.000

136.500

133.000

130.000

212.760

0.000**

  1. p < 0.05 ** p < 0.01.