Research Methodology · Experimental Validity
रोसेन्थल द्वारा 1966 में प्रायोगिक शोध में आंतरिक वैधता (Internal Validity) के लिए किस खतरे की पहचान की गई थी?
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- 1प्रायोगिक मृत्यु दर (Experimental Mortality)
- 2प्रयोगकर्ता की प्रत्याशा / अपेक्षा (Expectancy)✓
- 3उपकरण (Instrumentation)
- 4परिपक्वता (Maturation)
सही उत्तर देखें
प्रयोगकर्ता की प्रत्याशा / अपेक्षा (Expectancy)
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