Research matters II

TextMATTERS -II

DALAL ALQAHTANI, BDS, MSc, M eddalalq@ksu.edu.sa

Don't wish

for it

WORK FOR

IT

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RESEARCHScientific

Method

العلميالمنهج

The systematic and

principled way of

obtaining evidence for

solving problems

Philosophy and Principles

of Scientific Method

Empiricism

Determinism

Scepticism

Observation Hypothesis Theory

(Falsifiable)

Hypothesis

Hypothesis

1980

Young patients

presented with a deadly

cancer ( KAPOSI

SARCOMA)

KAPOSI SARCOMA

Premature failure of immunity !THEORY

• AIDS is caused by HIV

• There is negative relationship between

number of lymopcytes and HIV loads

Multiple hypothesis

Are there non scientific

methods?

Authority

Reasoning

All persons suffering from lung cancer are males

Person X has lung cancer

Therefore, person X is a male

Intuition

Discoveries are sometimes resisted because they are counterintuitive

Hungarian physician

Known as an early pioneer

of antiseptic procedures

Ignaz Semmelweis

(1818-65)

The fever of 1849

Research Types

Qualitative

Quantitative

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