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Definition
| concerns the issue of whether the constructs researchers claim to studying are truly the ones they are manipulating and measuring |
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| statistical conclusion validity |
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| concerns the proper statistical treatment of data and then soundness of the researcher's statistical conclusions |
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| concerns the degree to which we can be confident that a study demonstrated that one variable had a causal effect on another variable |
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concerns the degree to which the findings of the study can generalize.
-Across populations
-Across settings
-Across species |
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| concerns the degree to which responses obtained in a research context generalize to behavior in natural settings |
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| refers to the process of repeating a study in order to determine whether the original findings will be upheld |
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| study that has features of an experiment, but lacks the key aspects of a experimental control |
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| refers to events that occur while an experiment is being conducted, but is not part of the experimental manipulation or treatment |
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| refers to ways that people naturally change over time, independent of their participation in a study |
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| concerns whether measuring participant's responses affects how they answer on subsequent measures |
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| refers to changes that occur in a measuring instrument during the course of data collection |
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| statistical concept that when two variables aer not perfectly correlated, more extreme values of one variable tends to reflect less extreme values of the other variable. (Basically, extreme scores are outliers in being further from the mean) |
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Definition
| aka. subject loss - occurs when participants fail to complete a study |
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Definition
| occurs when at the beginning of the study participants in different conditions already different in some characteristic that could partially or fully account for differences in the dependent variable (results) |
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Definition
| cues that clue the participants as to the hypothesis being tested and the behavior expected of them. |
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| experimenter expectancy effects |
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Definition
| unintentional ways in which researchers influence their participants to behave in ways that support their hypothesis |
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Term
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Definition
| aka blinding - a procedure in which the parties involved in an experiment are kept unaware of the hypothesis being tested or the condition the participant is in |
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Definition
| people's expectations about how a treatment will affect them influence their responses |
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Definition
| group in which participants do not receive the treatment but they are lead to believe they are or may be receiving it |
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Definition
| in which neither the participants nor the experimenters are aware of who is receiving the actual treatment and who receiving a placebo |
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Definition
| each control group member is procedurally linked (yoked) to a member in the treatment group whose behavior will determine how they are both treated |
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| occurs when all the scores for a dependent variable bunch up at the max level |
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| occurs when scores on a dependent variable bunch up at the minimum score level |
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Definition
| refers to ability to detect that an effect is actually present |
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Definition
| trial run of a study, usually with few participants, prior to the actual experiment to work out the kinks |
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Definition
| measures to determine whether procedures used to manipulate an independent variable actually captured the construct being measured (e.g. boredom manipulation check) |
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| conversation between researcher and participant that gives further information about the study and its purpose |
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| aka full replication, includes all the conditions of the original study |
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| replication of a study that only includes some of the conditions |
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Definition
| aka exact replication, researchers follow the procedures of the original study as closely as possible |
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Definition
| studies the same questions as the original study but with different operational definitions for construct variables |
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Term
| replication and extension |
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Definition
| replication that adds a new design element to the original study |
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