Flashcards
Informatics: Data collection methods, hypothesis, data
Flashcards do conjunto (25)
- 1Hypothesis must... (7- Be testable
- Independent and Dependant
- Based on a specific observation
- Supporting evidence
- Objective
- Not vague
- Not trivial - 2Economic solution constraints (2- Cost
- Time - 3Technical solution constraints (4- Processing speed
- Resources available
- Security
- Capacity - 4Legal solution constraints (2- Ownership
- Privacy of Data - 5Social constraints (1- Expertise
- 6Scope (3- Defined by requirements
- Not too broad hypothesis
- What solution will be - 7Primary DataNon interpretted, non evaluated data
- 8Primary Data Pros (5- No original data is lost
- Know if follow up data can be sought
- More suitable to question
- Support secondary data
- No mysteries on authenticity - 9Primary Data Cons (2- Less efficient (Time, labour and money)
- More scarce - 10Secondary DataData interpreted by outside party
- 11Secondary Data Pros (5- More efficient (cheap, quick)
- Huge amount
- Historic data
- Greater location variety
- Baseline to primary data - 12Secondary Data cons (5- Irrelevancy
- Unknown sources
- Bias and inaccuracy
- Altered
- Access to original data impossible - 13Qualitative Data (5- Words
- Opinions
- Needs to be coded
- Subjective
- Delve into ethical issues - 14Quantitative Data (5- Numerically
- Measurement acquirement
- Scientific approach
- Analysed statistically
- Objective - 15Coding qualitative data (5- Summarising
- Categorising
- Scale
- Descriptive coding (reduce words)
- Analytic coding (symbols) - 16Closed questions (5- Limited choice of answers
- Prevent detail
- Easy to analyse
- Multiple/radio buttons
- May cause bias, by excluding options - 17Open Questions (3- Detailed
- Less useful w/ more answers
- Ambiguity - 18Loaded questionHas controversial assumptions
- 19Leading questionLead to a specific answer
- 20Interviews (5- Shaped by given answers
- Interviewee more inclined to answer
- Face to face > Video > Phone
- Interviewee may lie
- Tone and emotion - 21Observation (5- More natural/truthful
- Avoid personal judgement
- Less efficient
- No reasons
- Overt act different - 22Surveys (6- Wider distribution
- More efficient
- Analysed electronically
- Respondents may view questions differently
- Self-selection bias
- Following up questioning impossible - 23Query by Example (QBE) (3- Type what you want
- Uses GUI
- Coding and parenthesis - 24Structure language query (SLQ) (2- Standard method
- Reused easily - 25Querying other resources (2- Browser: HTTP
- Interaction: Application Programming interface (API)
Informações
- Descrição
- FlashCards sobre Informatics: Data collection methods, hypothesis, data, criado por Aidan Wong em 10-11-2017.
- Criado por
- Aidan Wong
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