To test the notion two heads are better than one, a psychologist measures how long it takes people working either in groups of two or working alone to solve a problem. The independent variable is

THE SCIENTIFIC METHOD AND DESCRIPTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

To test the notion ‘two heads are better than one’, a psychologist measures how long it takes people working either in groups of two or working alone to solve a problem. The independent variable is

A	the problem
B	the number of people working on the problem
C	the time it takes to solve the problem
D	whether or not the problem is solved

Explanation:

Detailed explanation-1: –Observational: the systematic observation of behavior, including quantitative analysis of the recorded data.-Survey: the research involves asking respondents questions with the aim of describing or explaining their responses.

Detailed explanation-2: -Psychologists use a variety of methods like Observation, Experimental, Correlational, Survey, Psychological Testing, and Case Study to collect data.

Detailed explanation-3: -A key method of selecting individuals to be in a sample to best represent a population is called random sampling. Scientists use random sampling to guarantee that every individual in the population has an equal probability of being selected, and this ensures that the sample is most similar to the overall population.

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AP PSYCHOLOGY

RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE

THE SCIENTIFIC METHOD AND DESCRIPTION