Threats to Construct Validity:
a) Reactivity to study situations
b) Researcher expectations
c) Novelty Effects

a) Reactivity to study situation: Reactivity to study situation refers to the changes in a participant’s behavior due to their being aware that they are being studied. This could lead to participants tailoring their responses to reflect favorably upon themselves, thus impacting the validity of the results due to false reporting. b) Researcher expectations: Researcher expectations refer to the potential bias of the researcher conducting the study. The researcher's expectations of the study outcomes could lead to misinterpretations and false conclusions because the researcher is allowing their expectations to influence the results. c) Novelty Effects: Novelty effects refer to the tendency of participants to respond differently depending on how interesting or novel the study is. This can lead to false results because participants may respond to the novelty of the study situation rather than responding accurately. Additionally, if the study does not have ongoing and consistent novelty, this can lead to decreased interest from participants and an overall reduction in the quality of the data gathered.