My question: Dependent-samples t-test: (a) develop a research question that can be addressed with dependent-samples t-test, (b) state the null and alternative hypotheses (in words), (c) state the alpha level, (d) run the analysis, and (e) provide interpretation of results (including checks for assumptions and effect size) following APA format

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My question:

Dependent-samples t-test:

(a) develop a research question that can be addressed with dependent-samples t-test,

(b) state the null and alternative hypotheses (in words),

(c) state the alpha level,

(d) run the analysis, and

(e) provide interpretation of results (including checks for assumptions and effect size) following APA format

Description of Data
This data set contains the achievement test (English as a Second
Language) results and
some background data collected during experimental trial of a
new ESL program. The study was
one year in duration. Students were allocated to the experimental
ESL program class and a
regular program control class on a random basis. Vocabulary and
grammar tests were
administered to the students in both groups at the beginning and
the end of the school year.
Data can be found in the excel file: ESLprogram.csv
Variables
The dataset includes 24 cases and 7 variables:
• Student ID
- Group (1 - experimental, 2 - control, 9 - missing)
· Gender (1 - male, 2 - female, 9 - missing)
• Pre-test vocabulary scores (scores range from 0 - 25, 99 -
missing)
• Pre-test grammar scores (scores range from 0 - 25, 99 -
missing)
· Post-test vocabulary scores (scores range from 0 - 25, 99 -
missing)
· Post-test grammar scores (scores range from 0 - 25, 99 -
missing)
Transcribed Image Text:Description of Data This data set contains the achievement test (English as a Second Language) results and some background data collected during experimental trial of a new ESL program. The study was one year in duration. Students were allocated to the experimental ESL program class and a regular program control class on a random basis. Vocabulary and grammar tests were administered to the students in both groups at the beginning and the end of the school year. Data can be found in the excel file: ESLprogram.csv Variables The dataset includes 24 cases and 7 variables: • Student ID - Group (1 - experimental, 2 - control, 9 - missing) · Gender (1 - male, 2 - female, 9 - missing) • Pre-test vocabulary scores (scores range from 0 - 25, 99 - missing) • Pre-test grammar scores (scores range from 0 - 25, 99 - missing) · Post-test vocabulary scores (scores range from 0 - 25, 99 - missing) · Post-test grammar scores (scores range from 0 - 25, 99 - missing)
Student ID
Group
Gender PreVocab PreGrammar PostVocab PostGrammar
1
1
1
14
15
18
18
1
1
2
12
11
19
19
5
1
2
13
14
19
18
6
1
1
9
17
16
1
2
10
13
18
17
1
2
12
15
19
18
10
1
2
10
17
17
11
1
1
10
12
18
19
13
1
13
17
14
11
12
19
19
15
1
13
14
18
20
17
1
2
17
14
20
18
18
2
2
12
13
18
19
20
2
2
12
10
14
13
21
2
1
10
11
15
15
22
2
2
14
16
19
19
28
2
11
12
16
15
33
2
12
13
17
34
2
1
13
14
19
18
38
2
1
12
11
16
16
40
2
11
16
17
41
2
14
13
18
19
42
2
1
17
18
20
20
43
1
11
13
15
14
2.
2.
2.
Transcribed Image Text:Student ID Group Gender PreVocab PreGrammar PostVocab PostGrammar 1 1 1 14 15 18 18 1 1 2 12 11 19 19 5 1 2 13 14 19 18 6 1 1 9 17 16 1 2 10 13 18 17 1 2 12 15 19 18 10 1 2 10 17 17 11 1 1 10 12 18 19 13 1 13 17 14 11 12 19 19 15 1 13 14 18 20 17 1 2 17 14 20 18 18 2 2 12 13 18 19 20 2 2 12 10 14 13 21 2 1 10 11 15 15 22 2 2 14 16 19 19 28 2 11 12 16 15 33 2 12 13 17 34 2 1 13 14 19 18 38 2 1 12 11 16 16 40 2 11 16 17 41 2 14 13 18 19 42 2 1 17 18 20 20 43 1 11 13 15 14 2. 2. 2.
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