Wednesday, 11 January 2012

AO2-different reaserch methods

Assessment Objective Two

Aims and Objectives
Analyse a range of different research methods

How will the assessment take place?
l  Completion of six worksheets. One for each of the following methods of research:
1.      Experiments
2.      Surveys
3.      Case Studies
4.      Observations- (participant / non participant)
5.      Questionnaires using rating systems e.g. Likert scale
6.      Interviews- Formal and informal

l  For each method of research you will comment on:
o   Overview of the method
o   Advantages and disadvantages
o   Examples of when it can be used in public services
o   Provide evidence of its use.

Grading
Pass
Candidates identify different types of research methods and provide a
simple analysis of each. They demonstrate a limited understanding
of the relevant methodology, its key concepts and its usage.

Merit
Candidates identify different types of research methods and provide a clear
analysis of each. They demonstrate a good understanding of the relevant
methodology, its key concepts and its usage.

Distinction
Candidates identify different types of research methods and provide a
detailed analysis of each. They demonstrate an excellent understanding of the relevant methodology, its key concepts and its usage




Experiments
Overview:
Definition
Research  method for testing different assumptions (hypotheses) by trial and error under conditions constructed and controlled by the researcher.
Source:

The Forensic Science service experiment on people or dead bodies to determine the outcome of the event. For example they can search people or crime scenes for DNA, hair, blood, fingerprints, gun residue etc. to collect evidence to put together what happened.

This would be done by hiring experts to examine the crime scenes.

The data is presented by the experts determining what happened by collecting evidence to back up there research/ data.

Advantages:
  • The advantages of experiments are that experts can examine bodies/ cases that happened years ago to determine what happened.
  • The evidence they gain only these experts can use to obtain answers such as peoples blood, DNA, Hair, Fingerprints etc.
  • They can place people at the scene.
  • More reliable as forensic experts are advancing their technology.
  • Can find clues even if they have be cleaned for example blood, gun residue etc.

Disadvantages:

  • The cost of the experts
  • The time it takes to perform all the tests
  • The need to have a suspect and DNA from the suspect to match any evidence found
  • They need to place people at the scene at the right time. For example if there was a murder in an alleyway. If an innocent person had walked own the alley before the murder ad dropped a hair or touch a wall etc. then the forensics would find there Fingerprints or hair and then the [person would have to prove their innocence.
  • Remains could be missing and therefore damage the research.
  • If the crime was one from the past its hard to recall the incident.



Usage:
  • At crime scenes
  • Murders
  • Rapes
  • Gun shootouts
  • Riots
  • Car Crashes



Example of use:

Holly Wells and Jessica Chapman two 10-year-old Girls famous for wearing Manchester United shirts went missing in August 2002 after spending the day at Holly’s home in Soham.  Forensic experts, police and family members search for the missing girls. After 13 days the hunt ended with the girls’ bodies being found dead. 
On 17 August 2002, the FSS was asked to examine clothing including partially burnt Manchester United football shirts found in a bin at the hangar at Soham college. Two scientists went to examine the hangar and the bins.
The bin was packaged and brought back to the Huntingdon lab. As well as the Manchester United tops there were tracksuit bottoms, underwear and shoes belonging to both girls. Surface debris, including hairs and fibres, was recovered from inside and outside the bin including hairs and fibres. The clothing was screened for the presence of blood, saliva and semen. Many items had been fire damaged and some had melted into a mass.
After thousands of hours of research over a 14-month period scientists from the FSS examined 40,000 fibres and eventually were able to link hairs from Ian Huntley along with fibres from his clothing and his house to the Manchester United football shirts worn by both girls on the last day they were seen.
They were also able to link fibres from the football shirts to Ian Huntley’s house and items of his clothing. Of the 40,000 fibres examined, the FSS was able to provide the evidence of a two-way transfer of 154 fibres between Huntley’s clothing and carpets, and the Manchester United football shirts and tracksuit bottoms of the girls.
Ian Huntley, a school caretaker at the school the girls attended was found guilty at the Old Bailey in December 2003 of the murders of Holly Wells and Jessica Chapman and was sentenced to life imprisonment.





Surveys
Overview:
Definition:

A survey is a data collection tool used to gather information from individuals to determine an outcome”.
Source:

a survey is a range of questions based on a specific topic to gain results about that topic. The questions can range from anything.


Advantages:
The advantages of a survey are that:
  • They give a vast range of answers
  • The questions can be based on anything
  • The questions can be on any subject
  • The gain views from the public so that they can see how the public feel and think about policies etc.
  • They give people an overview of what they are accesses.
  • The target audience for the surveys can be anyone from under 16’s to over 50’s etc.
  • Changes can be made based on the results in order to advance and make things better.

Disadvantages:
  • The time it takes to make a survey so that the questions are relevant to the answers required
  • The time it takes for people to answer the survey as the survey will need a lot of questions to get the right data.
  • The time it takes to present the data and make sure they put it to scale correctly
  • Need to ask the correct percentage of people so that they are reliable. If they only asked 500 people about a subject, they cannot say that “the majority of the UK” as they have only asked 500 people and there are 69 million people in the UK  
  • Some people don’t always want to answer the survey and may answer them as a joke.
  • People don’t always like answering questions about personal subjects

Usage:
  • To gain views from the public about crime, the police etc.
  • To gain the views of colleagues from a workplace etc.

Example of use:
A survey from the police to gain views from the public about crime concerns in their neighbourhood.








Case Studies
Overview:
Definition:

“Case studies typically examine the interplay of all variables in order to provide as complete an understanding of an event or situation as possible”.


Source:


Advantages:
  • Primary and secondary information
  • Lots of information so content is easy to gather.
  • Insight into an event so that people can get an idea of what happened during the event
  • Informative
  • Results, learn from mistakes  (CRB check)
  • Changes in policy etc. to make a better future.
  • Lots of sources so that text is reliable.
  • Easy to access as internet is easy to use, also find articles in local libraries, can ask witnesses who were there.
  • Information is usually in one place therefore its easy and quick to collect the data
  • Used by all members of the public services so there are lots of different case studies.


Disadvantages:
  • Time to compile, takes a long time to gather all the information and put it together  
  • Lots of sources some unreliable therefore could be misleading or make you take longer searching for the text.
  • Contradict if based on opinions.
  • Time it takes to find the best sources and find the correct amount of information.
  • Too many sources, therefore takes too long to find the right source
  • There is no limit into what is put onto the internet therefore you can be put onto unwanted websites etc.


Usage:

Police Force - crimes
Armed Forces- incidents, missions
Forensic service


Example of use:

This is a print screen of a case study which I did about the Duneblane Massacre of 1996. In this case study I had to gather information about what actually happened to get an overview of this incident. I had to make sure that the websites I gathered the information from were reliable.




Observations
Overview:
Definition:

A method of data collection in which the situation of interest is watched and the relevant facts, actions and behaviours are recorded.

Source:


Advantages:

  • Primary source- reliable as you witness it personally
  •  Gives you an overview of what happened as you can take eyewitness events into account.
  • Notice other things that you might not normally notice because you are studying things harder such as pictures etc.
  •  Response to the incidents is faster.
  • Interception- listening to phone calls watching people etc.


Disadvantages:

  • Time it takes to observe people and watch there every moves etc.
  • The cost of the observation as you have to pay police officer to sit in cars
  • Money for value, paying police to sit around in a car all day watching a door isn’t worth the cost as they are trained for much more effective operations
  • Back up maybe required therefore become a rush and shortens the amount of officer for other crimes.
  • Could lead to false judgment as the could think that somebody doing something that there not.


Usage:

Police force- watch suspects
Armed forces- reconnaissance drones
MI5- terrorists
Fire service- 


Example of use: Jean Charles De Menezes

Jean Charles de Menezes (7 January 1978 – 22 July 2005) was a Brazilian man shot in the head seven times at Stockwell tube station on the London Underground by the London Metropolitan police. He was misidentified as one of the fugitives involved in the previous day's failed bombing attempts. These events took place two weeks after the London bombings of 7 July 2005, in which 56 people died.
The shooting became particularly controversial because later police and media accounts contradicted each other, specifically regarding Menezes's manner and clothing as he entered the station, and whether there had been any police warnings before the firing. The death sparked an intense public debate over an apparent change in police policy, in which a shoot to kill practice known as “Operation Kratos” had been introduced to deal with terrorist threats. Because of the controversy the codename "Operation Kratos" was dropped in 2007, but the policy continues.
On the day of the shooting, the police were hunting four men believed to be involved in the failed bombing attempts the day before. Intelligence had linked the men to a block of flats in Tulse Hill, south London, the same building in which Menezes was living. Police put the communal entrance under surveillance, and on the morning of the shooting, saw Menezes leave the building. Plain clothes officers, armed with pistols, followed him as he took a bus to Brixton tube station, before boarding another to Stockwell tube station because the tube station at Brixton was closed. Specialist firearms officers were called to Stockwell. Just after Menezes entered a train, several officers wrestled him to the ground and fired no fewer than seven bullets into his head at point blank range. The train was still at the platform with its doors open, having just been evacuated by officers.





Questionnaires
Overview:
Definition:

“A form containing a set of questions, especially one addressed to a statistically significant number of subjects as a way of gathering information for a survey”.

Source:


Advantages:

  • Get to ask as many questions are required.
  • Right questions,
  • Clear questions.
  • Personal question.
  • Get opinions facts/ open closed.
  • Different types of questions

Disadvantages:
  • Questions need to be relevant
  • People might be offended by the questions, such as personal or inappropriate questions
  • If the question are not clear people may answer the incorrectly



Usage:
The police would use a questionnaire if they are asking people about crime rates and if they think they have increased or decreased, or to see if they think the police are being effective.
The Armed Forces use a questionnaire when soldiers are returning from duty. When a soldier has returned from duty, they have to answer a questionnaire about there time in wherever they had been stationed, about the conditions and how they were looked after during their time away etc.  
Both of these public services also use questionnaires in the selection processes.



Example of use:
This is a questionnaire the Armed Forces use in their recruitment process.






Interviews
Overview:
Definition:

A formal meeting in person, especially one arranged for the assessment of the qualifications of an applicant.

A conversation, such as one conducted by a reporter, in which facts or statements are elicited from another.

Source:







Advantages:








Disadvantages:








Usage:








Example of use:







Assessment Objective Two reaserch methods

Assessment Objective Two
Lesson One Tasks

Aims and Objectives
Analyse a range of different research methods

  1. What is the office for national statistics?
The Office for National Statistics (ONS) is the executive office of the UK Statistics Authority, a non-ministerial department which reports directly to the Parliament of the United Kingdom.



  1. What is the website address?

                http://www.ons.gov.uk/

  1. What 7 key areas that the Home office Department of Government responsible for?
    1.  Alcohol and Drugs

    1.  Counter-Terrorism

    1.   Crime

    1.  Equality

    1.  Immigration

    1.  Police

    1. Science, Research and Statistics


  1. Why do they produce crime statistics?
·         To get an evaluation of crime rates, (increases or decreases)
·          To see what areas of crime needs improving and what has been improved.





  1. State 5 facts about the British Crime Survey.
·         Target audience is people aged 16 and over

·          The BCS inly ask people living in households in England and Wales

·         It asks people about their experiences of crime in the last 12 months.

·         The results are used to estimate levels of crime in England and Wales.

·         The results of the survey play an important role in informing government policy.

Assessment Objective Two Boscastle Questionnaire

Assessment Objective Two
Questionnaire Tasks

Task
Design a questionnaire to gauge how well residents of Boscastle thought the public services responded to the floods in 2004.

·        Must consist of between 5-10 statements
·        Must use the Likert scale below
1.     Strongly disagree
2.     Disagree
3.     Neither agree nor disagree
4.     Agree
5.     Strongly agree

1.       The Army responded quickly to the floods
1                      2                      3                      4                      5         

2.       A range of Public Services worked well together
1                      2                      3                      4                      5

3. The Fire Brigade was the most effective Public Service
1                      2                      3                      4                      5

4.   The Police Force worked to standards.
1                      2                      3                      4                      5
5. The Paramedics saved many lives
1             2                      3                      4                      5

6.     The RAF Rescue team used correct measures to        rescue people 
1                      2                      3                      4                      5

7.     The Police blocked the roads to Boscastle Quickly enough
1                      2                      3                      4                      5
8. The public service were helpful rebuilding after the                         flood
1                      2                      3                      4                      5

AO2- Questionnaire

Assessment Objective Two
Questionnaire Tasks

Aims and Objectives
Analyse a range of different research methods

  1. There are many types of questions that require different answer formats. How many different types of responses can you think of?

a.        Yes

b.       No

c.        N/A (no applicable)

d.       A Value

e.       A number

f.         Age

g.        Gender male/female

h.       Ethnic Backgrounds

i.         Race

j.        Nationality

k.       Factual Questions

l.         Opinions

m.     Sexuality

n.      Religion




  1. What is the difference between an open and closed question?
a.       Open
An open question is a question that opens an opportunity to engage in a deeper discussion or opinion on the question. For example if somebody ask you “What are your view on the Police Force” etc.



b.      Closed
A closed question is a question that requires a direct and factual answer. The question only offers a yes or no answer. For example “how old are you” etc.





  1. What dictates the style of question used?

The style of question depends on the information that is required. For example, if a police officer was applying for a job then they would mainly be asked closed questions such as: “what qualifications do you have” “do you have a criminal record”, “if so what are they” etc. In the table below, describe the various types of question response and explain an advantage/disadvantage.


Response
Explanation
Advantage
Disadvantage

Closed (yes/no)

A direct answer. A choice of one or the other
Definitive answer. Gives information required
Doesn’t allow for strength of opinion or explanation

Personal Details (age, sex)

A direct answer. There is only one answer. 
Gives required information. Factual.
No explanation.

Likert Scale

A scale with a range of answer (1-5)
Demonstrates the strength of the opinions. Direct answers.
Allows choice.
Don’t always get the required answer.

Open (Justification)

Opinion based. Detailed
 Detailed and explained answer.
people may get misled away from the question

Factual Question

A truthful question about yourself
Truthful answer. Information comes from the answerer.
People can over exaggerate










  1. What other key issues are there regarding the use of questionnaires?

a.        What information is required?


b.       Target audience (who are you asking)


c.        The question are relevant and appropriate to the answers needed


d.       Will the questions give you the required answers?



  1. What is the Likert scale? What advantages are there in it’s use?
A Likert scale is a statement in which you have to give your opinion on a scale of 1-5 etc.

AO2- experiments

Assessment Objective Two
Lesson Two Tasks - Experiments

Aims and Objectives
Analyse a range of different research methods

  1. What is the Forensic Science Service?
The Forensic Science Service (FSS) is the market leader in the supply of forensic services to police forces in England and Wales and has a global reputation for excellence in the development and deployment of new and advanced techniques. Its heritage and expertise also provide the basis for world-class training services.

  1. What is the website address?


  1. Which UK organisations do the FSS provide services for?
The FSS provides key services to people involved in criminal justice throughout the UK and overseas. Our UK customers include police forces, HMRC, British Transport Police, the CPS and commercial organisations, while our overseas involvement sees us working with law enforcement agencies across the globe.

  1. Complete the following sentances:

1,300 scientists are involved annually with:
·         More than 120,000 cases.
·         Attendance at over 1,500 crime scenes.
·         Processing just under 500,000 DNA samples.
·         Providing evidence in court on more than 2,000 occasions


  1. List 8 services that the FSS provide:
    1.  Analytic Solutions
    2.  Expert Solutions
    3.  Offence-Based Solutions
    4.  Response Solutions
    5.  Evidence Management
    6.  Training
    7.  International Solutions
    8. Electronic Forensic Solutions



  1. What was significant about the Colin Pitchfork conviction?
  2. Colin Pitchfork became the first person in the world to be convicted of murder through the use of DNA profiling.




  1. Choose one other case study and summarise.


Case:        Holly Wells and Jessica Chapman

Summary: Holly Wells and Jessica Chapman two 10-year-old Girls famous for wearing Manchester United shirts went missing in August 2002 after spending the day at Holly’s home in Soham.  Forensic experts, police and family members search for the missing girls. After 13 days the hunt ended with the girls’ bodies being found dead. 
On 17 August 2002, the FSS was asked to examine clothing including partially burnt Manchester United football shirts found in a bin at the hangar at Soham college. Two scientists went to examine the hangar and the bins.
The bin was packaged and brought back to the Huntingdon lab. As well as the Manchester United tops there were tracksuit bottoms, underwear and shoes belonging to both girls. Surface debris, including hairs and fibres, was recovered from inside and outside the bin including hairs and fibres. The clothing was screened for the presence of blood, saliva and semen. Many items had been fire damaged and some had melted into a mass.
After thousands of hours of research over a 14-month period scientists from the FSS examined 40,000 fibres and eventually were able to link hairs from Ian Huntley along with fibres from his clothing and his house to the Manchester United football shirts worn by both girls on the last day they were seen.
They were also able to link fibres from the football shirts to Ian Huntley’s house and items of his clothing. Of the 40,000 fibres examined, the FSS was able to provide the evidence of a two-way transfer of 154 fibres between Huntley’s clothing and carpets, and the Manchester United football shirts and tracksuit bottoms of the girls.
Ian Huntley, a school caretaker at the school the girls attended was found guilty at the Old Bailey in December 2003 of the murders of Holly Wells and Jessica Chapman and was sentenced to life imprisonment.