Using short stories vs. video clips to improve upper intermediate EFL students’ sociopragmatic knowledge: Speech acts in focus

Figures & data

Table 1. Demographic background of the participants

No. of Students	75
Gender	39 Females & 36 Males
Native Language	Persian
Level of Proficiency	Upper Intermediate

Table 2. Test of normal distribution for EG1, EG2, and CG samples

	Group	Kolmogorov-Smirnov^a			Shapiro-Wilk
		Statistic	df	Sig.	Statistic	df	Sig.
Pre.EG1	Exprimental	.161	25	.094	.956	25	.345
	Control	.092	25	.200*	.979	25	.862
Post.EG1	Exprimental	.118	25	.200*	.948	25	.223
	Control	.116	25	.200*	.953	25	.293
Pre.EG2	Exprimental	.114	25	.200*	.958	25	.371
	Control	.092	25	.200*	.979	25	.862
Post.EG2	Exprimental	.122	25	.200*	.968	25	.601
	Control	.116	25	.200*	.953	25	.293

Table 3. Descriptive statistics for EG1, EG2, and CG on pretest

	Group	N	Mean	Std. Deviation
Pre.EG1	Exprimental	25	80.6000	3.91578
	Control	25	80.6400	3.80657
Pre.EG2	Exprimental	25	78.8400	4.66976
	Control	25	80.6400	3.80657

Table 4. Independent samples t-test

		t-test for Equality of Means
		t	df	Sig. (2-tailed)	95% Confidence Interval of the Difference	95% Confidence Interval of the Difference
					Lower	Upper
Pre.EG1	Equal variances assumed	−.037	48	.971	−2.23605	2.15605
	Equal variances not assumed	−.037	47.962	.971	−2.23609	2.15609
Pre.EG2	Equal variances assumed	−1.494	48	.142	−4.22268	.62268
	Equal variances not assumed	−1.494	46.126	.142	−4.22523	.62523

Table 5. Descriptive statistics for EG1 on posttest

Dependent Variable: Post.EG1
Group	Mean	Std. Deviation	N
Experimental	84.3600	4.07104	25
Control	80.8400	3.84794	25
Total	82.6000	4.30472	50

Table 6. Levene’s test of equality of error variances for EG1

Dependent Variable: Post.EG1
F	df1	df2	Sig.
.552	1	48	.461

Table 7. Tests of between-subjects effects

Dependent Variable: Post.EG1
Source	Type III Sum of Squares	df	Mean Square	F	Sig.	Partial Eta Squared
Corrected Model	664.840^a	2	332.420	64.253	.000	.732
Intercept	23.263	1	23.263	4.496	.039	.087
Pre.EG1	509.960	1	509.960	98.570	.000	.677
Group	157.861	1	157.861	30.513	.000	.394
Error	243.160	47	5.174
Total	342,046.000	50
Corrected Total	908.000	49

a. R Squared = .732 (Adjusted R Squared = .721)

Table 8. Descriptive statistic for EG2 on posttest

Dependent Variable: Post.EG2
Group	Mean	Std. Deviation	N
Experimental	85.9600	4.76515	25
Control	80.8400	3.84794	25
Total	83.4000	5.00612	50

Table 9. Levene’s test of equality of error variances

Dependent Variable: Post.EG2
F	df1	df2	Sig.
3.230	1	48	.079

Table 10. Tests of between-subjects effects

Dependent Variable: Post.EG2
Source	Type III Sum of Squares	df	Mean Square	F	Sig.	Partial Eta Squared
Corrected Model	913.555^a	2	456.777	68.274	.000	.744
Intercept	44.295	1	44.295	6.621	.013	.123
Pre.EG2	585.875	1	585.875	87.571	.000	.651
Group	519.706	1	519.706	77.680	.000	.623
Error	314.445	47	6.690
Total	349,006.000	50
Corrected Total	1228.000	49

a. R Squared = .744 (Adjusted R Squared = .733)