Workbookto be submitted on 19^{th}May 2014
Week3 Exercise:
10 students took part in anexperiment comparing the impact of taking one of two different formsof examination on their exam performance.
The two forms of examination werea traditional unseen closed examination and an openbook examination.
Students were randomly allocatedto taking either open book or traditional examination first and wentthrough both conditions. Exam performance was measured by theiroverall examination score, out of 100 (where higher scores meanbetter performance). These scores are shown in the table below.
Participant 
Traditional Exam 
Openbook Exam 
Gender 
1 
58 
58 
Male 
2 
55 
65 
Male 
3 
65 
65 
Female 
4 
48 
72 
Male 
5 
58 
45 
Female 
6 
62 
52 
Female 
7 
52 
55 
Male 
8 
55 
62 
Female 
9 
65 
62 
Male 
10 
52 
55 
Female 
Tasks:

Insert the data into the SPSS and save it as an Exam Experiment

Calculate the mean and standard deviations for the traditional and open book examinations

Present your calculations in APA format table
Statistics 

Traditional Exam 
Open book Exam 

N 
Valid 
10 
10 
Missing 
0 
0 

Mean 
57.00 
59.10 

Std. Deviation 
5.715 
7.724 

Calculate the mean and standard deviations for the traditional and open book examinations separately for male and female students

Present your calculations in APA format table separately for each gender
Report 

TraditionalExam 

Gender 
Mean 
Std. Deviation 
male 
55.60 
6.427 
female 
58.40 
5.225 
Total 
57.00 
5.715 
Report 

OpenbookExam 

Gender 
Mean 
Std. Deviation 
male 
62.40 
6.580 
female 
55.80 
7.981 
Total 
59.10 
7.724 

Save the output as an “Exam Experiment descriptive statistics”
Week6
Exercise 1
A researcher wished to examine theextent to which people persevere at difficult tasks in noisy andquiet conditions. Twelve people performed the task in each of twoconditions:

simulating working on their own in a quiet office and

simulating working in a busy open plan office, with a lot of high volume background noise.
The order of the conditions wascounterbalanced. Participants were given a set of insoluble (unknownto them) problems to attempt. The following table shows the numberof attempts made to solve the problems by each participant in the twoconditions.
Hypothesis: Participants will makefewer attempts to solve the problems in the noisy environment
Analyse the data using suitabletechnique and report the results in APA format
Participant 
Quiet condition 
Noisy Condition 
1 
18 
20 
2 
23 
15 
3 
15 
10 
4 
17 
16 
5 
20 
11 
6 
15 
13 
7 
33 
16 
8 
18 
14 
9 
19 
16 
10 
14 
16 
11 
22 
17 
12 
18 
9 
Paired Samples Statistics 

Mean 
N 
Std. Deviation 
Std. Error Mean 

Pair 1 
Quietcondition 
19.33 
12 
5.087 
1.469 
NoisyCondition 
14.42 
12 
3.175 
.917 
Paired Samples Test 

Paired Differences 
t 
df 
Sig. (2tailed) 

Mean 
Std. Deviation 
Std. Error Mean 
95% Confidence Interval of the Difference 

Lower 
Upper 

Pair 1 
Quietcondition – NoisyCondition 
4.917 
5.334 
1.540 
1.528 
8.305 
3.193 
11 
.009 
Exercise 2
A researcher investigated the extentto which eye contact was maintained by male participants during aninterview with either a male or female interviewer. There were twentyparticipants in total with ten being allocated to the maleinterviewer and ten to the female interviewer. The percentage of timefor which eye contact was maintained during the interview wasmeasured for each participant and these values are shown below:
Hypothesis: there will be adifference in the percentage of time the eye contact is helddepending on the gender of the interviewer
Analyse the data using suitabletechnique and report the results in APA format
Sex of interviewer 

Male 
Female 
38 31 24 21 20 30 28 32 31 26 
25 24 31 15 31 12 34 26 23 35 
Paired Samples Statistics 

Mean 
N 
Std. Deviation 
Std. Error Mean 

Pair 1 
Male 
28.10 
10 
5.486 
1.735 
Female 
25.60 
10 
7.633 
2.414 
Paired Samples Test 

Paired Differences 
t 
df 
Sig. (2tailed) 

Mean 
Std. Deviation 
Std. Error Mean 
95% Confidence Interval of the Difference 

Lower 
Upper 

Pair 1 
Male – Female 
2.500 
10.014 
3.167 
4.663 
9.663 
.789 
9 
.450 
Week7
Exercise 1
An experiment was carried out toinvestigate the effect of stress on skilled performance. Eachparticipant carried out a choice reaction task under each of twoconditions: stress and no stress. Performance was measured as thenumber of errors made in 100 trials. The experimenter is interestedin whether stress affects performance. It was hypothesised thatparticipants will make more errors in the stress condition
Analyse the data using suitabletechnique and report the results in APA format
Participant 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
No stress 
7 
10 
5 
13 
5 
3 
10 
5 
6 
10 
Stress 
6 
17 
10 
11 
4 
9 
9 
11 
8 
17 
Paired Samples Statistics 

Mean 
N 
Std. Deviation 
Std. Error Mean 

Pair 1 
Nostress 
7.40 
10 
3.169 
1.002 
Stress 
10.20 
10 
4.185 
1.323 
Paired Samples Test 

Paired Differences 
t 
df 
Sig. (2tailed) 

Mean 
Std. Deviation 
Std. Error Mean 
95% Confidence Interval of the Difference 

Lower 
Upper 

Pair 1 
Nostress – Stress 
2.800 
3.765 
1.191 
5.494 
.106 
2.352 
9 
.043 
Exercise 2
An experiment was carried out toinvestigate the effect of a dietary supplement on various aspects ofcognitive performance. Sixteen participants took part in the studywith each participant being randomly allocated to a control (nosupplement) or a treatment (supplement) condition.
It was hypothesised that there will bea difference between the two groups in their cognitive performance.
Analyse the data using suitabletechnique and report the results in APA format
Control 
18 
19 
21 
21 
24 
24 
26 
27 
Treatment 
13 
14 
16 
16 
20 
20 
22 
28 
Paired Samples Statistics 

Mean 
N 
Std. Deviation 
Std. Error Mean 

Pair 1 
Control 
22.50 
8 
3.251 
1.150 
Treatment 
18.63 
8 
4.926 
1.742 
Paired Samples Test 

Paired Differences 
t 
df 
Sig. (2tailed) 

Mean 
Std. Deviation 
Std. Error Mean 
95% Confidence Interval of the Difference 

Lower 
Upper 

Pair 1 
Control – Treatment 
3.875 
2.031 
.718 
2.177 
5.573 
5.396 
7 
.001 
Reference
Bryman, A.(2012). Socialresearch methods.Oxford university press.