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| According to lecture, which is the most common outcome in experimental results? |
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Definition
| The group means are different and there is overlap between groups |
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| in a population, individuals differ for unknown reasons. These individual differences are called: |
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| your results include Sds that are very small. This probably means that... |
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| the mean scores of two groups in your experiment are very similar. This probably means that |
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| your experiment contains only a few participants per group. This probably means that |
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| statistically significant |
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| not statistically significant |
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| statistically significant |
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| we judge research results to be statistically significant when |
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Definition
| population error variance probably didn't create group differences |
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| Sudsy soap currently sells $3 million dollars worth its product every week. You predict that changing th products packaging from green to red will increase sales. After the cahgnge, sales are #2.7 million per week, with p= .02. which is the correct decision about this study? |
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Definition
| You should reject the scientific hypothesis. |
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| statistically significant |
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Definition
| acceptable risk that error variance caused group differences |
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Definition
| too great a risk that error variance caused group differences |
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Definition
| acceptable risk that error variance caused group differences |
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| in general, alpha is set in a way that keeps down the number of |
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Definition
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| in the “attitudes of science” that are expressed through inferential statistics, which is avoided as much as possible? |
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Definition
| Believing in an effect that is not real |
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Term
| if p=.04 and you reject the null hypothesis , what is the probability of making a type 1 judgement error? |
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Definition
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| according to the rules of inferential statistics, in which case would you reject the null hypothesis |
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Definition
| significant, IV will increase DV, DV increases |
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| low, iv will decrease the dv, dv increases |
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Definition
| reject the scientific hypothesis |
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| low, iv will increase the dv, dv increases |
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Definition
| fail to reject the scientific hypothesis |
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Term
| low, iv will increase the dv, dv increases |
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Definition
| reject the null hypothesis |
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| high, iv will increase the dv, dv increases |
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Definition
| fail to reject null hypothesis |
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Term
| dr. frade coducted an experiemtn comparing two kinds of therapy in equivalent groups of anxiety patients. He predicted that fradian psychotheraly would work better than explosion therapy. Dr feade carefully followed the rules of inferential statistics, and decided to fail to reject his scientific hyp. If a low score means less anxious, which results did dr frade get? |
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Definition
| 27, 30, statistically significant |
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| asks whether the effect in the study would occur with different populations or in different settings |
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Definition
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| asks whether a confound might be responsible for any effects that occurred during the study |
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Definition
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| asks whether population error variance could be responsible for any apparent effects that occurred in your study. |
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| asks whether a study's results should be applied to change the everyday world |
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| you decide to reject the scientific hypothesis. |
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| the null hypothesis is wrong, but on the advice of inferential statistics you failed to reject it. |
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| you would set alpha higher than .05 if you were a bit more concerned than usual about making a... |
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| scientific hypothesis: pink wall paint makes people feel calmer than blue wall paint. The results of the study were statistically significant |
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Definition
| not enough information to decide |
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| SH: liking will be different for coke than for pepsi. Results: p=.10 |
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Definition
| fail to reject the null hypothesis |
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| SH: conflict affects learning. Conflict group m=60% correct. No-conflict group m+80% correct. |
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Definition
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| SH: listening to music when studying helps you remember better than when studying with no music. Results: p=.09 |
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Definition
| fail to reject null hypothesis |
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| SH: writing in a diary reduces depression. At the study's end, depression scores were: diary group M=39.9, no diary group M= 25.0 |
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Definition
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Term
| the purpose of the effect size statistic is to determine whether |
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Definition
| a research result is statistically significant |
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Term
| according to your reading, the most impressive research results are those that are |
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Definition
| a research result was true for large numbers of the individuals in a study |
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| according to your reading, the effect size statistic called d is a ratio that compares ______ and the amount of variance in the sample of participants. |
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Definition
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Term
| an ethical dilemma occurs when |
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Definition
| the best interests of the subject and of the research project come into conflict |
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| according to the online reading assignment, researchers bear a responsibility to make sure that participant time is not wasted. They do this by |
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Definition
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| according to the online reading assignment, before beginning a study an ethical investigator makes a realistic assesment of |
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Definition
| the magnitude of the risks that participants may experience |
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| according to the online reading assignment, participants may be deceived about ___ but not about ____ |
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Definition
| events that will happen in the study; things that might influence their informed consent |
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| which of the following best captures what is communicated in an ethical code |
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Definition
| a statement that subjects should be treated fairly and safely, without listing any specific issues that might get in the way of fairness or safety |
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| the process of telling potential research volunteers what they're getting into, and getting their permission to be studied, is called |
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