PSYC 510 Quiz Two Group Designs
PSYC 510 Quiz Two Group Designs
- When conducting a Dependent-Samples (Matched-Pairs, Paired Samples) T-Test, the degrees of freedom is calculated using the following equation/symbol:
- When conducting an Independent Samples T-Test in SPSS, which of the following is the “grouping” variable?
- To ensure the sample is representative of the population about whom one is trying to generalize, one should use:
- Which of the following is NOT an assumption for an independent samples t-test?
- When entering data into SPSS for an independent samples t-test, the independent variable will be entered:
- When entering data into SPSS for a correlated groups t-test, the independent variable will be entered:
- If a teacher wants to assess whether there is a difference between males and females on test performance, the null hypothesis would be:
- To try to make experimental groups as equivalent as possible before beginning any manipulations, one should use:
- If a teacher administers a test and everyone scored 100% on it, s/he should be concerned about:
- When conducting an Independent Samples t-test in SPSS, if Levene’s Test for Equality of Variances is significant, you should:
- A researcher examined number of monthly meetings (2 or 4) on job satisfaction. If the t obtained for a correlated groups t-test was 2.50, df = 3, and the t critical = 2.353, what should s/he conclude?
- In an experimental study of the effects of anxiety on appetite, where subjects are randomly assigned to either an anxiety group or the no-anxiety group, anxiety is the:
- Discrete variables are to _____ and continuous variables are to _____.
- Which of the following represents the best operational definition of hunger?
- An observed score is comprised of the
- Which of the following is a participant (subject) variable?
- Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the mean is _____ the mode and _____ the median.
- Jill collects data on the participants in her study by writing down a full narrative description of everything they do. Jill is using a(n)
- Mail surveys are to _____ as personal interviews are to _____.
- When there is a _____ relationship, as scores on X increase, scores on Y also increase.
- The _____ distribution is a set of distributions that, although symmetrical and bell- shaped, are not normally distributed.
- is a procedure which allows us to predict an individual’s score on one variable based on knowing one or more other variables.
- When using an independent-groups t test, the difference between the means is divided by the standard error of the
- Internal validity is
- If researchers reported that, for a correlated-groups design, t(20) = 3.57, p<.05, you can conclude that
- For an independent-groups t test, the value of Cohen’s d describes
- In an experimental study of the effects of exercise on stress, exercise is the
- The alternative hypothesis for a two-tailed independent-groups t test states that
- When using a correlated-groups t test, df =
- In an experimental study of the effects of exercise on stress, stress is the
- Which of the following t test results has the greatest chance of statistical significance?
- To say that an experiment contains a confound means that
- If the null hypothesis is true, then the t test should be close to
- If an independent-groups t test has seven participants in each group, then the degrees of freedom are
- One advantage of the correlated-groups t test over the independent-groups t test is that it reduces the error variance due to
- Briefly explain the confounds of history and maturation.
- For an independent-groups t test, effect size can be measured using
- A design in which the same participants are used in each condition is a _____ design.
- A problem for within-subjects designs in which the order of the conditions has an effect on the dependent variable is
- A limitation in the ability to differentiate between scores at the bottom of the scale is a _____ and a limitation in the ability to differentiate between scores at the top of the scale is a _____