RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
THE SCIENTIFIC METHOD AND DESCRIPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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IV, DV and a predicted difference or correlation
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IV, DV and a prediction of no difference or correlation
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The type of data predicted and the sample
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The experiment design
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Detailed explanation-1: -Alternative hypotheses often include phrases such as “an effect, ” “a difference, ” or “a relationship.” When alternative hypotheses are written in mathematical terms, they always include an inequality (usually ≠, but sometimes < or >).
Detailed explanation-2: -The alternative hypothesis states that there is a relationship between the two variables being studied (one variable has an effect on the other). An experimental hypothesis predicts what change(s) will take place in the dependent variable when the independent variable is manipulated.
Detailed explanation-3: -A complex hypothesis predicts the relationship between two or more independent and dependent variables.
Detailed explanation-4: -An alternative hypothesis is an opposing theory to the null hypothesis. For example, if the null hypothesis predicts something to be true, the alternative hypothesis predicts it to be false. The alternative hypothesis often is the statement you test when attempting to disprove the null hypothesis.