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Aim
Null Hypothesis
Directional hypothesis (One-Tailed)
Non-Directional hypothesis (Two-Tailed)
Independent Groups Design
Matched Pairs Design
Repeated Measures Design
Random Sampling
Opportunity Sampling
Volunteer Sampling
Behaviour Categories
Qualitative Data
Quantitative Data
Open Questions
Closed Questions
Operationalisation
Independent Variable
Dependent Variable
Extraneous Variable
Confounding Variable
Pilot Study
Reliability
Internal Validity
External Validity
Ecological validity
Demand Characteristics
Investigator Effects
Positive Correlation
Negative Correlation
Correlation Co-Efficient
Mundane Realism
Experimental Realism
Single Blind
Double Blind
Random Allocation
Lab Experiment
Field Experiment
Natural Experiment
Correlation
Naturalistic Observation
Controlled Observation
Questionnaire
Interview
Surveys
Case study
