Title: Lecture 4: Observational Studies
1Lecture 4 Observational Studies
2Scientific Observation Is Systematic
YOU SEE, BUT YOU DO NOT OBSERVE.
Sherlock Holmes
3Observation Research
- Advantages
- We can see what people actually do
- Avoid interview bias
- Quick data collection (sometimes)
- Disadvantages
- Researcher does not learn motives
- Time-consuming and expensive
4What Can Be Observed?
- Physical actions
- Verbal behavior
- Expressive behavior
- Spatial relations and locations
- Temporal patterns
- Verbal and pictorial records
5What Can Be Observed
Phenomena Example
Human behavior or physical Shoppers
movement action pattern in a store Verbal
behavior Statements made by airline
travelers who wait in line Expressive
behavior Facial expressions, tone of voice,
and other form of body language
6What Can Be Observed
Phenomena Example
Spatial relations How close visitors at an and
locations art museum stand to
paintings Temporal patterns How long fast-food
customers wait for their order to be
served Physical objects What brand name items
are stored in consumers pantries Verbal
and Pictorial Bar codes on product
packages Records
7Categories of Observation
- Natural versus contrived
- Human versus mechanical
- Visible versus hidden
- Direct versus indirect
- Structured versus unstructured
8Observation of Human BehaviorBenefits
- Communication with respondent is not necessary
- Data without distortions due to self-report
(e.g. without social desirability) Bias - No need to rely on respondents memory
- Nonverbal behavior data may be obtained
9Observation of Human BehaviorBenefits
- Certain data may be obtained more quickly
- Environmental conditions may be recorded
- May be combined with survey to provide
supplemental evidence
10Observation of Human BehaviorLimitations
- Cognitive phenomena cannot be observed
- Interpretation of data may be a problem
- Not all activity can be recorded
- Only short periods can be observed
- Observer bias possible
- Possible invasion of privacy
11Mystery Shopping
- To gather observational data about a store.
- To collect data about customer/employee
interactions - Level 1 a mystery phone call
- Level 2 a quick purchase, little or no
interaction - Level 3 using a script, initiates a conversation
- Level 4 requires excellent communication and
knowledge of a product
12Content Analysis
- Obtains data by observing and analyzing the
content of advertisements, letters, articles,
etc. - Deals with the study of the message itself
- Measures the extent of emphasis or omission
13Other Human observation
- One Way Mirror Observations
- Allows clients to observe the group discussion as
it unfolds - Shopper Patterns and Behavior
- Tracing the flow of shoppers through the store
14Human observation continued
- Humanistic Inquiry
- The researcher becomes part of the group he is
studying - An immersion process
- (Example Harley Davidson)
15Observation of Physical Objects
- Physical-trace evidence
- Wear and tear of a book indicates how often it
has been read
16Mechanical Observation
- Scanners
- Traffic Counters
- Web Traffic
- Peoplemeter
- Physiological Measures
- Videos and cameras
17IRI Scanners
- BehaviorScan is an industry-recognized in-market
testing service that not only determines if your
new product and its launch strategy are on
target, but also yields valuable consumer
insights to maximize your success. The
BehaviorScan service provides consultation on
test design and market selection, complete
in-market execution, and an in-depth presentation
of results.
18Frequent Shopper cards
- Savings?
- Need them to not pay more?
- Intrusion of privacy?
- Help manufactures segment customers.
19RFID Tags
20Monitoring Web Site Traffic
- Hits and page views
- Jupiter Media Metrics
- Nielsen//NetRatings
21Physiological Reactions
- Eye tracking
- Pupilometer
- Psychogalvanometer
- Voice pitch
22Eye Tracking Monitors
- Record how the subject actually reads or views an
advertisement - Measure unconscious eye movements
23Pupilometer
- This device observes and records changes in the
diameter of the subjects pupils.
24Psychogalvanometer
- Measures galvanic skin response
- Involuntary changes in the electrical resistance
of the skin - Assumption physiological changes accompany
emotional reactions
25Voice Pitch Analysis
- Measures emotional reactions through
physiological changes in a persons voice
26videography
27Differences in approaches
- Scanner Researchers ( behaviorists)
- Quantitative, mathematical modelers,
statisticians - Interested in what consumers do
- Attitudinal Researchers
- Scanner data too sterile
- Must know feelings/attitudes