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Table 2 Descriptive Statistics (Pre-tests)

From: Comparing the effectiveness of input-based and output-based activities on productive knowledge of vocabulary among pre-intermediate EFL learners

 

N

Mean

Std. Deviation

Std. Error

95% Confidence Interval for Mean

Minimum

Maximum

Lower Bound

Upper Bound

IB Group

18

8.7222

2.13667

.50362

7.6597

9.7848

5.00

12.00

OB Group

18

8.9444

1.84621

.43516

8.0263

9.8625

5.50

12.00

Control Group

18

9.0278

1.73606

.40919

8.1645

9.8911

6.00

11.50

Total

54

8.8981

1.88184

.25609

8.3845

9.4118

5.00

12.00