Comparison of Research Methods
population at large.
3. There are also problems with research bias. It is often assumed that researchers may "see what they want to see." What one interprets is considerably influenced by one¡¯s past experiences. Individuals may pay extra attention to surprising or intense events while ignoring repetitive events. Past experiences can also have influence our expectations about the relative importance of various situations. Events may be noticed or ignored depending on an observer's biases.
4. Conditions, sampling populations, and time are difficult to control. Quantitative and statistical analyses are therefore also difficult to perform.