Research Methods Key Terms 5.0 / 5 based on 1 ratingTeacher recommended ? PsychologyResearch methods and techniquesASAQA Created by: EllePalmer23Created on: 11-12-16 21:06 92568137104 Across 1. Restatement of aims, explanation of use of findings, reminder that data can be withdrawn until published. Particularly important if you had to deceive PPs in the brief. (7) 4. Splitting a test into two halves, and comparing the scores in both halves. If the results in the two halves are similar, we can assume the test is reliable. (5, 4, 11) 6. Most frequently occurring. Used for nominal data. Adv - Only measure of central tendency suitable for summarising category data. Disadv - May be no modal value or several. (4) 7. Standard deviation squared. (8) 10. Sum of all the numbers divided by number of numbers. Used for interval data. Adv - Uses all values so sensitive to variation. Disadv - Can be artificially raised/lowered by an extreme or skewed value. Need normal distribution, unskewed & no outliers. (4) Down 2. Cluster of scores at lower end of data set. Bell curve has a tail on the right side of the peak. (8, 4) 3. A short explanation read to participants which explains what the research aim is and what they will be expected to do. (5) 5. Middle number. Used for ordinal data.Use median when can't use mean because of skew/outliers etc. Adv - Based on order of data not actual values so not distorted by extreme values. Disadv - Less sensitive to variations in data. (6) 8. Before publication, research undergoes peer review. Fellow researchers criticise and evaluate work to assess quality. Ensures accuracy and indicates any required further work. Prevents publication of flawed/falsified work and maintains credibility. (4, 6) 9. Describes the degree to which the materials and procedures involved in an experiment are similar to events that occur in the real world. (7, 7)
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