NAME: ________________________

# ← Research Methods QuizTest

### Question Limit

of 50 available terms

### 5 Matching Questions

1. Applied Research
2. predictive validity
3. Null Hypothesis
4. Correlational Research
5. Ratio Scale
1. a Can a measure predict performance later (SAT and freshman college GPA). Correlates test scores with criterion scores obtained after examinee have had a chance to achieve the outcome that is supposedly predicted by the test (empirical/criterion approach)
2. b have a true zero point and stops at zero, where interval measures don't have a true zero. (number of stutters). Difference between ranks are equal. A raw score is a ratio scale because your raw score can't be below zero. A percentile rank is also a ratio scale because you can go below zero percent ad the difference between ranks are equal.
3. c if you look at the degree of relationship between two or more quantitative variables.
4. d Based on real life situations. Much more specific.
5. e statistical hypothesis which needs to be considered when analyzing results obtained from samples in quantitative research. Says there is no difference between the treatment and control groups and as a researcher your goal is to disprove the null hypothesis and show that there is a difference between the two groups

H0: A=B (there is no difference)

### 5 Multiple Choice Questions

1. repeatedly measure traits of the participants over a period of time in order to trace developmental trends. There can be experimental aspects within a longitudinal study. It is overall an non-experimental.
2. Well-designed non-randomized controlled trial (quasi-experiments)
3. judgements on the appropriateness of the content (judgement approach)
4. The manipulated variable in the research. Stimulus/input
5. Multiple time series with or without the intervention. Dramatic results obtained from uncontrolled experiments.

### 5 True/False Questions

1. Measure vs. VariableMay interfere with the independent variable (therapy in the morning than in the afternoon because the client seems more alert)

2. Reilly Levels of Evidence: Level 21: Well-designed randomized controlled trials (doesn't compare other studies)

3. QualitativeInterview ppl and come up with common themes via a interview. relating to or involving comparisons based on qualities

4. Case Studynon experimental, happen a lot with unusual cases because there are so few individuals. Usually only involves one person. Emphasis is on obtaining thorough knowledge of an individual, sometimes obtained over a long period of time.

5. Interval Scalecategories (stutter or not stutter, boys vs. girls)