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Changes for page Measuring Instruments

Last modified by Sofia Kostakonti on 2022/04/04 12:04
From version Icon 3.1 Icon
edited by Veikko Saikkonen
on 2022/03/01 11:46
Change comment: There is no comment for this version
To version Icon 4.1 Icon
edited by Veikko Saikkonen
on 2022/03/01 11:59
Change comment: There is no comment for this version

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43 43  **T**echnologies: Hardware and software
44 44  
45 45  
46 += Evaluation methods =
46 46  
48 +== Formative evaluation ==
49 +
50 +- Open ended evaluation on the design
51 +- E.g. How will the users respond to the new design?
52 +
53 +
54 +== Summative evaluation ==
55 +
56 +- Focus on the overall effect
57 +- Summarizes if the objective is reached
58 +- E.g. Are the participants happier when working with design X in comparison to design Y?
59 +
60 +== Data ==
61 +
62 +- Qualitative: Explore, discover, instruct
63 +
64 +- Quantitative: Describe, explain, predict
65 +
66 + - Subjective quantitative
67 +
68 +
69 +== Statistics ==
70 +
71 +- Descriptive: Describe the dataset, e.g. mean time on task
72 +- Inferential: Using a sample to infer about a population, e.g. predicted mean time on task based on user characteristics.
73 +
74 +== Experiment Design: Conditions ==
75 +
76 +=== Within Subjects (Repeated Measures) ===
77 +Each participant is subjected to all the test conditions.
78 +Fewer subjects needed and reduces variance in the Can be difficult to setup due to subjects fatiguing, learning about the setup or simply not having enough time.
79 +
80 +=== Between Subjects (Between Groups) ===
81 +One subject undergoes only one test. Simple to execute, but results in significant variance due to inter-subject differences in characteristics.
82 +
83 +
84 +== Lenses ==
85 +- Lense means to take different perspectives looking at your system
86 +- E.g. perspective of the stakeholders, other groups, or technical/legal
87 +
88 +
89 +
90 +