PSY1022 Lecture Notes - Lecture 12: Alternative Hypothesis, Statistical Inference, Exposure Therapy
15 Aug 2018
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Therefore, researchers select a smaller more manageable group from the population for their studies. If a difference is observed (e. g. , between treatment and control groups in an experiment) will this difference be reflected in the population generally: use hypothesis testing to generalize findings from samples to populations (statistical inference) Underlying logic revisited: hypothesis test is used to evaluate the results from a research study in which, a sample is selected from the population, the treatment is administered to the sample. Psy 1 01 1: after treatment, the individuals in the sample are measured. The boundaries are determined by the alpha level: determine the boundaries of the critical region, collect data and compute sample statistics, collect sample data: select random sample of 25 adults with ptsd. Have participants take part in exposure therapy for 6 week. Psy 1 01 1: we do this whenever the sample data fall in the critical region.
